bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Suhu Inkubasi Terhadap Profil Ekspresi Gen Determinasi Seks Tukik Lepidochelys olivacea
Authors: Febrianti Weni
Published: December 2022

Sex determination in turtles is not only based on genotype, but also depends on the incubation temperature. In addition, sex differentiation takes place during the thermosensitive period (TSP). This review article aims to examine the effect of incubation temperature on the expression profile of the sex determination gene for tortoises. Fertile eggs are incubated at two temperatures, namely the feminine temperature (30-33 ° C), and the masculine temperature (26-27 ° C). The results of bioreproduction and phenotype measurements of hatchlings, namely, embryo growth, incubation time, morphometrics, and locomotor performance of hatchlings were analyzed by regression analysis and Student's t test. The results of analysis from several literatures showed that the expression of aromatase and Rspond 1 genes (which play a role in ovarian differentiation) after TSP from incubated embryos at a higher feminine temperature and different from the masculine temperature. Regarding bioreproduction, the incubation period at the feminine temperature is shorter than the masculine temperature. Likewise embryos grow more rapidly at feminine temperatures. Incubation at feminine temperature had a significant effect on the phenotype of hatchlings, namely carapace width, plastron length and width, long flipper and hind arms, long neck, and flipper swing frequency.
Prospecting the roles of Trichoderma in sustainable crop production: biotechnological developments and future prospects
Authors: Syamsuri Rizky Riscahya Pratama , Aprilia Dwi Astuti , Fakhira Atasya Yasmine , Nabilah Almira Salma , Akbari Sulistya Ika , Rossiana Nia , Doni Febri
Published: December 2022

The filamentous fungal genus Trichoderma are reported to have a significant impact on the growth and development of various crops. Trichoderma species which are residing in the rhizosphere of crops, and as fungal symbionts living within plant tissues have multiple roles in enhancing crops’ agronomic traits, fitness, growth and yield, and in modulating their tolerance towards biotic and abiotic stresses. This article discusses on the potential and impact of Trichoderma in improving the development and production of crops, as well the mechanism of Trichoderma in improving the development and production of crops. This article also highlights the ability of Trichoderma for improving crops’ tolerance to abiotic and biotic stresses. Prospectively, the use of Trichoderma inoculants offers some new, cost-effective, and more eco-friendly practices for increasing crops’ production.
Analysis of Student Learning Difficulties on Senior High School Scope of Biology
Authors: Sundawiyani Ganis , Ningsih Kurnia , Titin Titin
Published: December 2022

This study aims to determine student learning difficulties, percentages, and the factors that cause learning difficulties experienced by class X students of SMA Negeri 6 Pontianak in studying the scope of biology. This research method uses a case study, with the research subjects being students of class X MIPA 3. In collecting data, three instruments were used, namely diagnostic tests, questionnaires, and interviews. The results showed that the percentage of students' learning difficulties in class X SMA Negeri 6 Pontianak in studying the scope of biology was 66.42% with high criteria. For the causal factors that affect student learning difficulties, it can be seen from the percentage of internal factors of 66.13% and external factors of 69.16% in the high category. Thus, class X SMA Negeri 6 Pontianak experienced learning difficulties caused by internal and external factors.
The Effectiveness of E-Modules on Discovery Learning Based Colloid System Materials on High School
Authors: Aryani Dewi Rika , Kurniawati Desy
Published: December 2022

The 2013 curriculum implemented by the government is expected to improve the quality of education. The scientific approach is the approach used in K13, which is a science-based approach. The research carried out is a follow-up study of the development of discovery learning-based colloid system e-modules for high school/MA students which has been tested for validity and practicality, but its effectiveness has not been tested. The purpose of this experiment is to see the effectiveness of using discovery learning e-modules for high school/MA students. The type of research used is pre-experimental using One Group-Pretest-Postest. The results obtained from this study are t-test with a significance level of 0.05, namely sig(2-Tailed) data obtained 0.000 proving that H0 is rejected, because the value of Sig <0.05 and H1 is accepted. The result of the N-Gain value in the sample class is 0.816. Based on the results of this study, it shows that the application of this e-module is very good in achieving goals and can develop learning outcomes for high school students
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS DISCOVERY LEARNING PADA MATERI BANGUN RUANG SISI LENGKUNG KELAS IX SMP NEGERI 16 PADANG
Authors: Nasution Agiestina
Published: December 2022

The potential to understand mathematical concepts of students at SMPN 16 Padang is very low. This is because students have not been facilitated by learning media that builds understanding of students' concepts. One of the methods used is to develop learning media in the form of Discovery Learning-Based Student Worksheets (LKPD). This study aims to develop Student Worksheets (LKPD) Based on Discovery Learning on the material of Constructing Curved Side Spaces for class IX SMP/MTs. The developed Student Worksheet (LKPD) is assessed based on legitimate and practical. This study is categorized as design research using the Plomp development model which consists of three stages, namely initial investigation, development/prototyping stage and assessment stage. At the initial investigation stage, needs analysis, curriculum analysis, concept analysis, and student analysis were carried out in order to obtain the characteristics form learning media developed. At the stage of development or prototyping, LKPD is designed with three characteristics, namely interface (display), content (content), and support (language and readability). The results obtained are at the LKPD validation stage, namely obtaining a score of 3.25 with a very valid category. In the practicality stage, the practicality value was obtained with a score of 3.14 in the practical category. So that it can be concluded that the Student Worksheet (LKPD) based on Discovery Learning is valid and practical to use in learning. Keywords - desain research, BRSL, Discovery Learning
PENGEMBANGAN MULTIMEDIA INTERAKTIF BERBASIS ANDROID PADA TOPIK PERSAMAAN KUADRAT BAGI PESERTA DIDIK KELAS XI SMK
Authors: Efendi Anisa Yanti
Published: December 2022

This study aims to develop android-based interactive multimedia in mathematics subjects at SMKN 2 Padang which can be used to facilitate educators and students in the learning process. The media, which was developed with the help of smart apps creator software, is to determine the validity and practicality of products that combine several formats such as text, images, animation, video, and audio. This research is a development research (Research and Development) with the Plomp development model with stages, namely: initial investigation stage, development stage, and assessment stage, but in this study only two stages were carried out. The instruments in this research are validity and practicality questionnaires. The developed media was tested on three students in the One-to-one Evaluation and six students in the Small Group Evaluation with different cognitive abilities. Based on the results of the analysis of the validity data, it shows the level of validity with the percentage (1) Material expert assessment reaches 83.33% with a very valid category, (2) Media expert assessment reaches 83.157% with a very valid category, (3) Linguistics expert assessment, namely SMKN 2 Educators Padang reached 97.89% with a very valid category, and (4) Expert assessment reached 84.21% with a very valid category. Interactive multimedia also meets the practical criteria from the questionnaire responses of three students who have carried out One-to-One Evaluation with a percentage of 84.44%. While the results of the student response questionnaire on the Small Group Evaluation with a percentage of 92.22% the criteria are very practical.  Keywords – Research development, android, interactive multimedia, Smart Apps Creator
PENGARUH MODEL PEMBELAJARAN DISCOVERY LEARNING TERHADAP HASIL BELAJAR PESERTA DIDIK KELAS XI MIPA SMAN 1 2x11 ENAM LINGKUNG
Authors: Saima Artika Mutiara
Published: December 2022

Learning outcomes can measure a students’s abilities. But in reality, there were still many math learning outcomes from poor or inadequate students. Discovery learning is one in every of learning models that could enhance college students mathematics studying outcomes. This type of research is a pre-experimental research using the One Group Pretest Posttest Design. The purpose of this study was to describe the development of mathematical learning outcomes of students in class XI IPA SMAN 1 2x11 Enam Lingkung after applying in the discovery learning model. The population of this study consisted of students in class XI MIPA SMAN 1 2x11 Enam Lingkung. The research subject being students of class XI MIPA 2. Pre-testing and post-testing of learning outcomes in the form of essay questions served as a research tool. Data were collected using tests and analyzed by paired sample t-tests and normalized gain tests. Research has shown that the average pre-test score for the experimental class is 50.37 and the average post-test score is 79.34. The results of the analysis came to the conclusion that the use of the discovery learning model influences the learning outcomes of mathematics. Keywords —Learning Outcome, Pre-Experiment, Discovery Learning
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERBASIS PROBLEM BASED LEARNING PADA MATERI PERSAMAAN DAN FUNGSI KUADRAT UNTUK PESERTA DIDIK KELAS IX SMP
Authors: Sangrila Ayu
Published: December 2022

The purpose of this reseach is toodevelop..student..worksheeti basedion iproblem basedi nlearning models on the topic Quadratic equations and function that is valid, and practical. Theeetype of this reseach is..research..and..developmentjj(R&D). The development model used is the Plomp model with threei stages, namelyopreliminaryiresearch, development or prototyping phase and assessment phase. At the development or prototyping phase , the LKPD will be revised based on a formative evaluation that concsisting of..self…evaluation,iiexpertiireviewi, ione-to-one evaluation,i iand osmalll lgroup levaluation. At the..assessment phase, only up to the practicality of LKPD. The result of this reseach are (1) The student worksheet that has developed is very valid withaaanaaaverage ivalue of 89,27%, (2) The student worksheet that has developed is very pratical withaaanaaaverage ivalue of 89,37%. Therefore, the develop students worksheet basedion iproblem ibased olearning models on.theitopic Quadratic equations and function can be rused inl mathematical learning..in schoolso.Keywords – yStudenti .Worksheet, Problem Based Learning, Quadratic Equations and Function
PENGARUH PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE LEARNING CYCLE 7E TERHADAP PEMAHAMAN KONSEP MATEMATIS PESERTA DIDIK KELAS VIII SMPN 1 LUBUK SIKAPING TAHUN PELAJARAN 2021/2022
Authors: Putri Chyntia Ersa
Published: December 2022

This study aims to determine whether the understanding of mathematical concepts of students whose learning applies the 7E Learning Cycle model is better than the understanding of mathematical concepts of students whose learning applies direct learning models in class VII SMPN 1 Lubuk Sikaping. The type of research is a quasi-experimental with Static Group Design. The population of this study was students in grades VII.1 to VII.10 of SMPN 1 Lubuk Sikaping who were registered in the 2020/2021 academic year. The research instrument is the final test which is analyzed using a hypothesis test, namely the U Mann Whitney test. Based on the statistical test analysis, it was obtained that the P-value was 0.0001, where the P-value was smaller than the real level of 0.05, which means that H0 is rejected. This shows that the Learning Cycle 7E learning model has an effect on understanding the mathematical concepts of students in class VII SMPN 1 Lubuk Sikaping.Keywords– Learning Cycle 7E, Pembelajaran Langsung, Pemahaman Konsep Matematis
PENGARUH PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM ASSISTED INDIVIDUALIZATION (TAI) TERHADAP PEMAHAMAN KONSEP PESERTA DIDIK DI KELAS VII SMP NEGERI 1 PADANG GANTING KABUPATEN TANAH DATAR
Authors: Amri Ilham Wahyudi
Published: December 2022

The first step in learning mathematics is to understand mathematical concepts.Understanding mathematical concepts provides students with a solid foundation for developing other fundamental skills such as reasoning, communication, connections, and problem solving. In fact, students at SMP Negeri 1 Padang Ganting continue to have a poor understanding ofmathematical concepts.This can be seen during observation and in the low scores of students' daily tests, which contain indicators of mathematical concept understanding.The Team Assisted Individualization (TAI) cooperative learning model is used to solve this problem.The goal of this study is to describe the understanding of students' as well as to compare the understanding of mathematical concepts of students who study with the TAI.The research design is quasi-experimental and descriptive, utilizing a Static Group Design.The study's participants were SMP Negeri 1 Padang Ganting class students in the 2021/2022 academic year.Class VII.A served as the experimental class, whereas class VII.B served as the control class.The instrument used in this study is a test of mathematical comprehension.During the study, the outcomes of quizzes were used to describe the growth of mathematical concepts, while the final test was analyzed using the t-test.The final test analysis P-value of 0.046 less than , indicating that students who study using the TAI type cooperative learning model have a greater knowledge of mathematical topics than students who learn using direct learning models. Keywords–team assisted  individual, Pembelajaran Langsung, Pemahaman Konsep Matematis
PENGEMBANGAN LKPD BERBASIS STEM PADA MATERI HIMPUNAN KELAS VII SMP/MTs
Authors: Viodelf Maichia Meimolly
Published: December 2022

Based on the results of preliminary research, it is known that in the learning process students are fixated on the use of LKS purchased from publishers, this has not optimized students to be able to think critically, be able to connect science with the real world, mastery of technology and information, which is a 21st century learning paradigm. based on advances in technology and science. Therefore, a teaching material in the form of a STEM-based LKPD was designed on the set material. This research includes development research using the Plomp model which consists of three stages, namely the preliminary research stage, the development or prototyping phase, and the assessment phase. This research produces STEM-based worksheets on set material that is valid and practical for the learning process Keywords — Research Development, LKPD, Sets, STEM, Plomp Development Model
DAMPAK PENGGUNAAN LKPD BERBASIS ETNOMATEMATIKA DENGAN KONTEKS BATIK JAMBI TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS PESERTA DIDIK
Authors: Satriani Melly
Published: December 2022

One of the objectives that should be accomplished by students in learning mathematics is understanding mathematical concepts. Truth be told, the comprehension of the ideas of class students at SMPN 10 Batang Hari is as yet in the low classification, this should be visible from the consequences of daily students evaluations where students experience issues responding to a few inquiries that contain marks of understanding mathematical concepts. The arrangements that should be possible to tackle this issues is to utilize ethnomathematics-based worksheet with regards to Jambi batik. The reason for this review was to decide and describe the development of the capacity to understand mathematical concepts of class IX SMPN 10 Batang Hari after using ethnomathematics-based worksheet in the context of Jambi batik. This research is a pre-experimental research using One Shot Case Study design. The subjects of this exploration were students of class IX.A SMPN 10 Batang Hari. This research data was collected through a final test of the capacity to understand mathematical concepts in view of the acquisition of the students average score of the each indicator and the percentage of the quantity of students in each score obtained. In view of information investigation, it tends to be presumed that the development of understanding mathematical concepts of class IX.A students of SMPN 10 Batang Hari after using ethomathematics-based worksheet in the context of Jambi batik is very good and has increased in each indicator. The average acquisition of the final test is 82,8 with a very good category. Keywords– Ethnomatematics, Jambi Batik, understand mathematical concept, worksheet, pre-experiment
PENGARUH MEDIA PEMBELAJARAN GOOGLE CLASSROOM PADA PEMBELAJARAN MATEMATIKA TERHADAP HASIL BELAJAR PESERTA DIDIK KELAS VII DI SMPN 1 AMPEK ANGKEK KABUPATEN AGAM
Authors: Ilham Muhammad
Published: December 2022

SMPN 1 Ampek Angkek is one of the new schools use Online learning in the COVID-19 pandemic. One of the efforts to improve student learning during the COVID-19 pandemic is to apply mathematics learning using Google Classroom media. The purpose of the study was to determine and analyze the effect of Google Classroom learning media on mathematics learning on the learning outcomes of class VII SMPN 1, Ampek Angkek, Agam Regency. This type of research is quasi-experimental. The population is class VII SMPN 1 Ampek Angkek for the academic year 2021/2022. Sampling was done by a simple random sampling technique. The number of students in the experimental and control classes amounted to 31 and 32 people, respectively. The data analysis technique was carried out by the t-test. Based on the results of data analysis, it was determined that P-value = 0.002, so H0 was rejected and H1 was accepted because 0.002 0.05 indicates that there is an effect of using Google Classroom media on Online mathematics learning. Keywords– Learning Media in Google Classroom, Mathematics Learning, and Learning Outcomes
PENGARUH PENERAPAN MODEL PEMBELAJARAN GENERATIF TERHADAP PEMAHAMAN KONSEP MATEMATIS PESERTA DIDIK KELAS VIII SMPN 1 2X11 KAYUTANAM
Authors: Rabiully Prisma Putri
Published: December 2022

Studying math concepts is one of the learning goals that students must master. However, in practice at SMPN 1 2 X 11 Kayutanam, competence to understand the concepts of class VIII students are not yet optimal. the competence to understand this concept is not optimal and it affects other mathematical abilities. One of the efforts to so that students understanding concepts increases  is to apply generative form of learning. Wishes of this study is to describe whether the competence to understand the concepts of students learned using a generative learning model is better than the competence to understand concepts of students learned using a direct learning model in class VIII of the SMPN 1 2 x 11 Kayutanam. The research method applied is quasi-experimental. The population in this study is 2021/2022 Class VIII SMP Negeri 1 2 x 11 Kayutanam. Sampling was performed using simpler random sampling techniques, with class VIII.2 as the experimental class and class VIII.3 as the control class.The research tool used was a conceptual understanding as in the form of a test of essay questions. Data from the Conceptual Understanding Tests were analyzed using t-tests. Reasonable results of the final test review, it was found that students who learned using generative learning models had better understanding of mathematical concepts than students who learned using direct learning models in class VIII of SMP N 1 2 x 11 Kayutanam. Therefore, it can be concluded that generative learning models have an impact on students' understanding of mathematical concepts. Keywords - : concept understanding, generative learning model, direct learning model
PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH PESERTA DIDIK KELAS X SMAN 1 LUBUK SIKAPING
Authors: Yulvira Rahma
Published: December 2022

Mathematical problem solving is an ability that must develop in learning mathematics. That is because, with the development of problem solving ability, the mindset of students will also increase. But in reality, the problem-solving ability of the 10th-grade students of SMAN 1 Lubuk Sikaping is still relatively low. Therefore, the study applied the model Problem-Based Learning to improve student’s problem-solving ability. The type of research is pre-experimental with the one-shot class study design. The study subjects were all of the 10th-grade SMAN 1 Lubuk Sikaping for the 2021/2022 year. The results data obtained from quiz and test mathematical's problem-solving abilities. Thus, it concluded that the learning Problem Based Learning positively influenced the mathematical problem solving ability of the 10th grade of SMAN 1 Lubuk Sikaping. Keywords — Problem Solving, Problem Based Learning
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS PESERTA DIDIK DI KELAS XI IPA SMAN 1 SUTERA
Authors: Yuadmiras Silvia
Published: December 2022

Mathematicals problem solving ability is one of the goals that must be achieved by students in learning mathematics. However, the reality  was that the mathematical problem solving ability of class XI IPA SMAN 1 Sutera students is still low, as can be seen from the results of daily assessments of students who have not been able to solve mathematical problems correctly in accordance with the indicators of mathematical problem solving ability. Effort that can be made to overcome these problems are by applying the Problem Based Learning model. This type of research is a pre-experimental research with One Shot Case Study design. The purpose of this study was to describe the development of mathematical problem solving abilities of students in class XI IPA SMAN 1 Sutera after applying in the prolem based learning model. The population of this study were students of class XI IPA SMAN 1 Sutera with the research sample being students of class XI IPA 3. The research instrument used was a mathematical problem solving ability test in the form of essay questions. Based on the results of data analysis, the average mathematical problem solving ability of students is 71,41. The percentage results of each indicator on the test questions are in the capable category. Thus, it can be concluded that in general the development of student’s mathematical problem solving abilities during the application of the problem based learning model has increased. Keywords — Mathematical Problem Solving Ability, Pre-Experiment, Problem Based Learning
PENGEMBANGAN VIDEO PEMBELAJARAN BERBASIS PENDEKATAN KONTEKSTUAL PADA MATERI POLA BILANGAN KELAS VIII SMP
Authors: Amanda Tia Fitri
Published: December 2022

This research was conducted at SMPN 1 X Koto Singkarak which aims to develop a valid and practical learning videos based on a contextual teaching learning approach on number pattern used as a learning media to attract student’s attention and help their learning process to be more active. The development of these video uses Plomp Model which has three stages, namely Preliminary research, prototyping phase and assessment phase. Formative evaluation is carried out on learning videos that are developed to become better products.  From the result of the development of this learning video obtained a validity value 85.10 % with a very valid category, the value of practicality based on student’s resposes in 86.45 % with a very practical category and the value of practicality based on teacher’s respond in 81,25% with practical category. Base on this, the learning video based on the contextual teaching learning approach that has been developed is valid and practical. Keywords — Learning Media, Learning Video, Contextual Teaching Learning Approach
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERBASIS DISCOVERY LEARNING PADA MATERI PERSAMAAN GARIS LURUS
Authors: Khairani Ummul
Published: December 2022

This research aims to develop valid and practical student worksheet based on discovery learning model on the straight line equations. This is because the worksheets used in the learning process have not allowed students to participate in finding concepts or principles to build knowledge actively. This research uses the Plomp development model. There are three phases: the preliminary research phase, the development or prototyping phase, and the assessment phase. Data collection methods are interviews, observations, and questionnaires. Data from interviews and observations were analyzed using descriptive techniques. Questionnaire data were analyzed through descriptive statistics. The research results we received were valid and practical worksheets for students. Judging from the presentation aspect, content aspect, discovery learning model, display aspect, and linguistic aspect, the percentage value of the LKPD validity of 83,21% is included in the valid category. Worksheets are also practical because they are easy for students to use. The LKPD practicality ratio of 88,05% is included in the very practical category. Based on the research results, it can be concluded that the LKPD developed can be used for mathematics education in schools. Keywords – Student Worksheet, Discovery Learning, Straight Line Equations, Plomp
PENGARUH PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISION TERHADAP PEMAHAMAN KONSEP MATEMATIS PESERTA DIDIK KELAS VIII SMP NEGERI 7 PADANG
Authors: Syukriardi Agung
Published: December 2022

The purpose of this research is to discribe whether applying the Student Teams Achievement Division type of cooperative learning model can improve students' understanding of mathematical concepts. This type of research is   a quantitative descriptive research using a pre-experimental design. The research design used is a one shot case study with the research subjects being class VIII students of SMP Negeri 7 Padang in 2021/2022. Data collection in this study consisted of five quizzes and a final test consisting of eight essay questions. The data analysis technique is analyzing the quiz scores at each meeting and analyzing the final test scores. The percentage of completeness of the quiz scores and the average quiz scores of students for the five meetings increased at each meeting. The average mathematical concept understanding test for all indicators is 84.15 with very good criteria. Keywords – Cooperative Learning, STAD, Understanding of Mathematical Concept
PENERAPAN E-MODUL PEMBELAJARAN BERBASIS PENDIDIKAN MATEMATIKA REALISTIK UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA PESERTA DIDIK KELAS X SMAN 2 SUTERA
Authors: Mayani Dwita Elfri
Published: December 2022

The success of a learner in understanding concepts of learning is typically determined by the learning results they achieve. Despite the high final term value assessment of mathematics class X SMAN 2 Sutera 2020/2021, the school is still concerned about the low level of student achievement. One manner to address the problem is to use the realistic mathematical learning module of the mathematical learning process. This study is aimed at documenting the outcomes of students who learned mathematics through realistic educational modules at SMAN 2 Sutera. The type of research being conducted is a pre-experiment designed for the one shot case study. The student is a member of the 2020/2021 class at the X science SMA N 2 Sutera. The instrument used is a mathematical check that may be defined in terms of matter of description, and the data is analyzed by the test sample t. Analysis of the data shows that H0 is rejected is can be concluded that an e-learning module based on realistic mathematical education affect the results that learn with a facts-based learning module are batter than those of prveious learning. Keywords: E-modul, Realistic Math Education, Results from Studying Mathematics
DESKRIPSI KESALAHAN BELAJAR PESERTA DIDIK BERDASARKAN TAHAPAN KASTOLAN PADA MATERI BANGUN RUANG SISI DATAR DI KELAS VIII SMPN 11 PADANG
Authors: AYESHA ADELLIA
Published: December 2022

This study aims to describe (1) the learning errors shown in the mathematics learning process and (2) the learning errors shown in the mathematics learning outcomes of the eighth grade students of SMPN 11 Padang. The source of data in this research is using purposive sampling. Students are grouped into three categories of high, medium, and low learning achievement. Data collection using tests and interviews. The results of the study showed that the errors made by students in solving the problem of building a flat side space were Conceptual Errors and Procedural Errors. The cause of student errors in solving the problem of building a flat side space is influenced by several causes. The causes of conceptual errors include (1) Students do not understand the meaning of the problem, (2) Students are wrong in choosing the formula, and (3) Students cannot apply the formula properly. The causes of procedural errors include (1) Students do not follow the steps in solving problems, (2) Students lack practice in working on questions, and (3) Students are not able to solve problems to a simple stage. Keyword: Build a flat side space, Description, Student learning errors
PENGEMBANGAN TUGAS MATEMATIKA DARING BERBASIS GOOGLE FORM PADA MATERI STATISTIKA DI KELAS VIII SMP/MTs
Authors: Rizqie Atabik
Published: December 2022

Math's student’s assignment based on Google Form is one of the products that help students study by themselves. It is adapted from Learning Activities in the Grade 8 Mathematics Student Book. This product provides direct feedback to help students understand and avoid conceptual errors. This research aims to develop a valid and practical Google Form-based online math assignment on statistics material in class VIII SMP/MTs. The model used for this development research is Plomp model which consists of the Preliminary, Prototyping and Assessment Phases. The preliminary stage consists of needs analysis, student analysis, curriculum analysis and concept analysis. At the prototyping stage, the task is designed to produce prototype 1, then self-evaluation is carried out to obtain prototype 2. Furthermore, an expert review is carried out to get the validity of the product until a prototype 3 is obtained. Then a one-to-one evaluation is carried out to a group of students and the results are revised to obtain a prototype 4. Finally, prototype 4 was tested with a small group evaluation of nine students. The product can be accessed at https://linktr.ee/tugasmtk8statistika. The results showed that the product has a level of validity in the valid category and has a level of practicality in the practical category. The conclusion of   the resulting product is valid and practical. Keywords __ Student Assignment, Google Form, Online, Feedback, Student Book
PENGARUH PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE THINK PAIR SHARE TERHADAP HASIL BELAJAR MATEMATIKA PESERTA DIDIK KELAS XI MIPA SMA NEGERI 1 PASAMAN
Authors: Pratiwi Doni
Published: December 2022

Mathematics learning outcomes are benchmarks that can be used to see how far students understand in the concepts that being taught. But in reality, students of class XI MIPA SMAN 1 Pasaman have mathematics learning outcomes that have not been achieved optimally.  To fix that problem, the Think Pair Share (TPS) learning model can be applied. The research aims to determine whether students who learn with the TPS have better outcomes of mathematics learning than students who learn to use direct learning model and to describe how the development of mathematics learning outcomes of students who learn with the TPS learning model. This research is a combination of descriptive research and quasi-experimental research. The design of the research that used was a nonequivalent (posttest only) control group design. The results of this research are the experiment class and control class students  have an average of each  class 88.67 and 81.56. The conclusion of this research is that the experiment class had better learning outcomes than the control class. Its obstained based on the hypothesis test, with P-value 0,000. Keywords–Mathematics Learning Outcomes, Think Pair Share Learning Model, Quasi Experiment
PENGEMBANGAN MEDIA INTERAKTIF BERBASIS PENDEKATAN KONSTRUKTIVIS PADA MATERI BANGUN RUANG SISI DATAR DI KELAS VIII SMP/MTs
Authors: Perdana Edo Hemat
Published: December 2022

Interactive media is a means of supporting learning that can increase interest and motivation to learn and affect the psychology of students so that learning becomes easier. Interactive media help students understand the learning material and develop their critical thinking skills. This study intends to develop an interactive learning media based on constructivists that is valid and practical on flat-sided building materials in class VIII SMP / MTs. This type of research is development using the Plomp model. The plomp model is composed of Preliminary, Prototyping and Assessment Phase. In the introduction, needs analysis, student analysis, curriculum analysis, and concept analysis were carried out. The prototyping stage is in the form of designing interactive learning media. In prototype 1, self evaluation and expert review are carried out. Expert review was conducted to see the validity of the developed interactive learning media. In prototype 2, a one-to-one evaluation trial was carried out by testing interactive media with three students. The result of the research shows that constructivist based interactive media on the flat side space building material has a validity level in the very valid category.  Interactive media has a practicality level in the very practical category. Based on these results, it can be concluded that the interactive media produced are valid and practical. Keywordss __ InteractivemMedia,aConstructivism,PPlomp
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERBASIS PENDEKATAN SAINTIFIK DENGAN MODEL DISCOVERY LEARNING PADA MATERI SEGIEMPAT DAN SEGITIGA KELAS VII SMP
Authors: Ulva Fauziah Tri
Published: December 2022

Quadrilaterals and triangles are geometric materials that have many uses in everyday life. However, based on the data from Puspendik KEMENDIKBUD, only 36.68% of students answered the flat shape and circle area correctly, and 29.0%7 answered the question interpreting the combined area of the flat shape correctly. Learning tools take an important role in the learning process. Learning tools are one of the tools that teachers can use to help them achieve their learning goals. However, from the observation results at school, there is a discrepancy between the learning tools developed by the teacher and the learning process carried out in the classroom, and it is meaningful for the students to positively feel their concepts and knowledge. This research have purpose to advance learning device based on a scientific approach using a discovery learning model. This reserach uses the Plomp method, which consists of stages. (1) Preliminary phase which is analyze of needss, student, curriculumand concept), (2) Prototyping phase which is including design the product, self-evaluation, validation by expert, one on one evaluation, and small group Evaluation, (3) Evaluation Phase, which was performed in a large group (field test), but in this study only up to the small group evaluation phase. The result of this research was obtained from the results of interviews and surveys. The results of the analyze of the obtained data show that learning devices based on a scientific approach based on the developed discovery learning model are very effective at an average rate of 92.32% and very practical at a rate of 93.36% of students response. It also got  average 86.61% for practical by teachers' responese. From this, we can conclude that the resulting learning tools are effective and practical.Keywords __ Discovery learning, Learning, Plomp, Scientific approach
PENGARUH MODEL PEMBELAJARAN GUIDED DISCOVERY LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA PESERTA DIDIK KELAS XI MIPA SMAN 14 PADANG
Authors: Nofma Firna Melisa
Published: December 2022

Math classes allow students to develop math skills, including problem solving skills.. But in fact, the mathematical problem solving ability of XI MIPA students at SMAN 14 Padang  still low. This can be determined by the first test of mathematical problem solving ability, which determines that the student failed to solve the problem. One effort to overcome these problems is to use the GDL model. The purpose of this study was to analyze that the mathematical problem solving ability of students who studied with the guided discovery learning model was better than the students who studied with the guided discovery learning model, as well as to compare and explain the development of students' mathematical problems. As long as the GDL model is applied in class XI MIPA SMAN 14 Padang, these problems can be resolved. The type of research used is a quasi-experimental research with a non-equivalent posttest-only control group design. The population of class XI MIPA SMAN 14 Padang in the academic year 2022/2023. The sample was obtained using the Simple Random Sampling technique so that class XI MIPA 2 was chosen as the experimental class and XI MIPA 4 was the control class. The tools used are quizzes at each meeting to check the development of students' mathematical problem solving abilities in the lab class, and essay-style math problem solving skills to compare their mathematical problem solving abilities. Student skills in the experimental and control classes. According to data analysis from  quizzes, each math problem solving index increases. The value of P = 0 was obtained based on the results of the analysis of the mathematical problem solving ability test. The P value is smaller than = 0.05, which means that the application of the GDL model has an effect on students' mathematical problem solving abilities, and the mathematical performance of students who use (GDL). Keywords - Guided Discovery Learning (GDL), Problem Solving
IPENERAPANiMODELiPEMBELAJARANiKOOPERATIFiTIPEiTWOIiSTAYiTWOiSTRAYiTERHADAP KEMAMPUANiPEMAHAMAN IKONSEPiMATEMATISiPESERTAiDIDIK KELASiXI MIPA SMAN 1I GUNUNG TULEH
Authors: Gusmalia Gusmalia
Published: December 2022

One of the objectives of learning mathematics is that students have a good understanding of mathematical concepts. However, students' conceptual understanding is still relatively low. One of the efforts that can be done to improve students' understanding of mathematical concepts is to apply the Two Stay Two Stray type of Cooperative learning model. students who study with conventional learning and describe the development of students' understanding of mathematical concepts during the implementation of the Two Stay Two Stray Cooperative learning model in class XI MIPA SMA Negeri 1 Gunung Tuleh. This type of research is a quasi-experimental with the nonequivalent posttest-only control group design. The population of the study was students of class XI MIPA SMA Negeri 1 Gunung TulehT for the academic year 2022/2023 with class XI MIPA 1 as the experimental class and XI MIPA 2 as the control class. Research data were collected through quizzes and tests of students' mathematical concept understanding abilities. Quiz score data were analyzed based on the average score, as well as the percentage of students' scores per indicator. The test data were analyzed using t-test.  Based on the results of data analysis, it can be concluded that in general the development of students' understanding of mathematical concepts has increased while using the TSTS model. Then, based on the results of hypothesis testing, it can be seen that the understanding of mathematical concepts of students who use the TSTS learning model is better than the understanding of mathematical concepts of students who study with conventional learning models. So it can be concluded that there is an influence of the TSTS learning model on the understanding of students' mathematical concepts. Keywords– TSTS learning model, Mathematical Concepts Understanding,Quasi Experiment
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISION TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS PESERTA DIDIK KELAS XI IPS MAN 4 TANAH DATAR
Authors: Amiza Melisa Tri
Published: December 2022

Main point for achieving learning goals and other mathematical abilities is the mathematical understand concepts ability. However, in reality the mathematical understand concepts ability owned by students of class XI IPS MAN 4 Tanah Datar is low. The effort that can be made to improve that ability of student are to apply student teams achievement division (STAD) learning model. The goals of research is for to know and analysis whether mathematical understand concept ability of students uses the STAD model is better from mathematical understand concept ability of students uses the direct learning model and to know and describe the development of the mathematical understand concepts ability of students use the STAD learning model in students of class XI IPS MAN 4 Tanah Datar. The type of the research is quasi-experimental and descriptive research with non-equivalent posttest-only control group design. Result showed that mathematical understand concept ability of students uses the STAD learning model is better from mathematical understand concept ability of students uses the direct learning model. Then, the mathematical understand concept ability of students uses STAD cooperative learning model has increased significantly. Keywords – mathematical concept, STAD learning model, direct learning
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISION TERHADAP PEMAHAMAN KONSEP MATEMATIS PESERTA DIDIK KELAS VII SMPN 1 ENAM LINGKUNG
Authors: Marliana Meri
Published: December 2022

Understanding the concept becomes the main basis in the achievement of learning mathematics. However, mathematics learning at SMPN 1 Enam Lingkung has not shown ability to understand students mathematichal concepts. Therefore, a apply the Student Teams Achievement Division (STAD) cooperative learning type model to see its effect on understanding of students in mathematical concepts.  The research type used is a quasi-experimental study and the posttest only design with nonequivalent groups. Based on data analysis using t-test, it can be concluded that the understanding of the concepts of students who learn with the Student Teams Achievement Division (STAD) model is more good than students who learn with the direct learning model in class VII SMPN 1 Enam Lingkung. Keywords– Teams work, Understanding Mathematical concepts, Student Teams Achievement Divison (STAD) Model, Mathematics Learning
PENGARUH PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS PESERTA DIDIK DI KELAS VIII SMP NEGERI 1 PALUPUH
Authors: Sarah Mutia
Published: December 2022

The goal of learning mathematics is to grow problem-solving skills, but in reality, participants' ability to solve mathematical problems remains low. One of the efforts that can be made to overcome the problem is the use of a problem-based learning model. The research method used is quasi experimental research with a Nonequivalent Control Group Design research design. Based on the results of the final test data analysis, it was concluded that the application of the problem-based learning model has an effect on the ability of mathematical students to solve problems, such that the mathematical problem-solving skills of students who learn with the problem-based learning model are superior to those of students who learn with the direct learning model.. Keywords– Problem Based Learning Model, Mathematics Learning, Mathematical Problem SolvingSkills
PENERAPAN MODEL PEMBELAJARAN REALISTIC MATHEMATICS EDUCATION TERHADAP KEMAMPUAN LITERASI MATEMATIS PESERTA DIDIK KELAS XI MIPA SMA NEGERI 3 PADANG
Authors: Husni Niakmatul
Published: December 2022

Mathematical literacy abilities are important abilities for students to solve daily problems and develop their mathematical ability. Then, the students need to have mathematical literacy ability because this ability is one of the national focuses in the future in assessing the quality of education in schools. But, in reality the students of class XI MIPA at SMA Negeri 3 Padang have low mathematical literacy ability. The effort that can be made to improve that ability of students are to apply Realistic Mathematics Education model. The type of the research is quasy experiment research with non-equivalent posttest only control group design. Results showed that mathematical literacy ability of students that apply Realistic Mathematics Education model is better than mathematical literacy ability of students that apply conventional learning. Moreover, the mathematical literacy ability of students that apply Realistic Mathematics Education model has increased significantly.Keywords– mathematical literacy ability, realistic mathematics education, conventional learning
Učíme zmysluplne v témach : vysokoškolské učebné texty pre budúce učiteľky a učiteľov materských škôl
Authors: Vančíková Katarína , Babiaková Simoneta , Dubovská Miriam , Guffová Daniela
Published: December 2022

Publikácia Učíme zmysluplne v témach je určená pre študentky a študentov učiteľstva pre predprimárne vzdelávanie. Ponúka hlbší vhľad do teoretických východísk projektovania výučby v materských školách založený na princípov humanistickej didaktiky. Obsahuje rozpracovanú ukážku integrovaného tematického edukačného projektu, ktorý poskytuje priestor pre didaktickú analýzu z pohľadu uplatňovania znakov zmysluplného učenia sa v MŠ.
PENERAPAN KONSELING BEHAVIORISTIK DENGAN TEKNIK SELF MANAGEMENT UNTUK MENGATASI PENYALAHGUNAAN MEDIA SOSIAL OLEH SISWA KELAS VII SMP 2 GEBOG KUDUS
Authors: Saputri Dyah Ayu , Masturi Masturi , Lestari Indah
Published: December 2022

This study aims: 1.To describe what factors make seventh grade students of SMP 2 Gebog able to abuse social media. 2. To assist seventh grade students in overcoming social media abuse through behavioristic counseling with self-management techniques at SMP 2 Gebog Kudus. The subjects studied were 2 seventh grade students of SMP 2 Gebog Kudus who abused social media. Methods of data collection using the method of observation, interviews, documentation, and home visits. Based on the results of the study, it can be concluded that there are two factors that cause social media abuse, namely internal and external, there are several factors that cause BM and RDA to abuse social media, including: lack of attention from parents, conflicts with friends, wanting to get attention from the opposite sex. , lack of confidence and fad. This makes BM and RDA behave maladaptively, say rude or swear, post pornographic things that harm others. After counseling with a behavioristic approach and self-management techniques, BM and RDA were able to eliminate their maladaptive behaviors such as being able to manage their thoughts and actions, control their emotions so they don't say rude things on social media and become confident. That means that behavioristic counseling and self-management techniques are very appropriate to overcome the abuse of social media experienced by BM and RDA.