bluuebunny/crossref_metadata_2025 huggingface dataset:
Mathematical literacy ability in terms of the independent learning students on reciprocal teaching learning models with approaching RME assisted by google classroom
Authors: Wesna M , Wardono  , Masrukan
Published: June 2021

The aim of this study is to determine the quality of the learning reciprocal teaching with approaching RME assisted by google classroom on mathematical literacy ability and describe mathematical literacy ability in terms of the independent learning students. This study uses a mixed-method. Subjects of this study were 8thgrade students of SMPN 7 Pontianak 2019/2020 school year. The subject of the study was based on the categories high independent learning, middle independent learning, and low independent learning. The results showed that the quality of reciprocal teaching-learning with the RME approach assisted by google classroom both qualitatively and quantitatively. Reciprocal teaching-learning of the planning and implementation categories included either. In the assessment phase, the ability of a mathematical literacy of reciprocal teaching achieve mastery learning and increasing categories included medium. Students in high independent learning can use all the indicators of mathematical literacy to the maximum. Students in the middle independent learning were able to use all indicators of mathematical literacy in a relatively long time. Students in the low independent learning enough in using indicators of mathematical literacy.
Dynamics of mathematical model interaction of living populations in making biogas as an alternative of renewable energy
Authors: Nugraheni K , Millah N , Soemarsono A R
Published: June 2021

Renewable energy which is often referred to alternative energy is needed as an alternative or substitute for conventional energy. Biogas is a type of energy source that comes from living things (plants and animals). Biogas is the most energy-efficient and environmentally friendly. Biogas as alternative energy has considerable potential to help reduce the use of fossil energy. One way to determine the effect of each aspect is to model it in mathematical language. Mathematical models represent the production of biogas by considering the interactions between living populations in making alternative renewable energy alternatives. The model is constructed as a nonlinear autonomous system with three dependent variables. After forming a mathematical model, dynamical behavior such as investigate the equilibrium point, a local stability analysis process is then carried out on the model. The numerical simulation will represent an illustration analysis results of the constructed model. The simulation results show the same stability analysis.
Spatial analysis of factors influencing Gross Regional Domestic Product (GRDP) in East Java: a spatial durbin error model analysis
Authors: Kholifia N , Rahardjo S , Muksar M , Atikah N , Afifah D L
Published: June 2021

Regression analysis is not always a suitable solution if the analyzed data contains spatial effects. In overcoming the spatial effect on the data, a statistical method that can overcome it is needed. Spatial regression is a method used for data that has a location effect. One of the spatial regression model that can be used is the spatial Durbin error model. Spatial Durbin error model can overcome the spatial autocorrelation relationship in the independent variables and overcome the spatial error between regions. Spatial effects influence the rate of economic growth in an area, so it is different in each region. The quality of economic growth is an essential indicator in measuring the welfare of an area’s people. The Gross Regional Domestic Product (GRDP) can measure the rate of economic growth. Many factors affect the size of the GRDP, including the total workforce, the number of industries, the number of labour, general allocation funds, regional revenue, and regional expenditure. This study uses the Spatial Durbin Error Model to model GRDP and map the level of economic growth in 38 districts/cities in East Java.
Temperature influences on dengue hemorrhagic fever mathematical model
Authors: Asih T S N , Kharis M , Syafa’atullah M F , Isfandari F
Published: June 2021

Dengue hemorrhagic fever (DHF) has been modeled as an epidemic model by looking at the interaction between humans and mosquitoes. The Aedes Aegypti mosquito is the primary vector of DHF. Its life is influenced by climatic factors, including temperature, humidity, rainfall, and rainy days. In this study, a model for the spread of DHF will be formed by paying attention to climatic factors, namely temperature. Previous studies have shown that temperature affects mosquito populations and the frequency of mosquito bites against humans. This model will modify the mosquito population growth rate and the frequency of bites, which are usually considered constant, to be a temperature function. Using the temperature data of Semarang, we simulate to evaluate the temperature influence on the dynamic of DHF. The analysis result giving the temperature domain for the equilibrium existences, and the simulation result show that temperature affects the time it takes to converge to the equilibrium point.
Guided discovery learning model with the teacher-student active learning approach, assisted by the WhatsApp solution alternative application on the COVID-19 pandemic
Authors: Sulistyo L , Kartono
Published: June 2021

All the Covid-19 pandemic has destroyed the normal activities of life on earth, including the education sector. As a professional educator, the Covid-19 pandemic disaster is a challenge to become the new normal in education. The internet is a vital tool for the implementation of online learning, the object of research is students of the 4th semester of electrical engineering study program UNISNU Jepara Indonesia with the Guided Discovery Learning model with the Teacher-Student Active Learning approach assisted by the WhatsApp application. Based on the results Mid-Semester Examination and Final Semester Examination, the SPSS calculation results show a positive correlation of 0.918, so it can be concluded that the Guided Discovery Learning model with the Teacher-Student Active Learning approach assisted with the WhatsApp application as a model and alternative learning approach for the Covid-19 pandemic and as a form of continuous learning online.
Implementation of problem based learning to improve students’ understanding of systems of linear equations in three variables
Authors: Sasmita S A , Qohar A
Published: June 2021

Based on the observation result conducted by researchers in class X-IPA 1 of UM Laboratory Senior High School, it could be seen that most students were less active during the learning process. Then from the pretest result of concept understanding problem, it was obtained that 38.89% of the 36 students were in the low category and 16.67% of the 36 students were in the medium category. Therefore, an innovation in implementation of mathematics learning to overcome the students’ poor concept understanding is needed. This research aims to describe the implementation of problem based learning model that can improve students’ understanding of systems of linear equations in three variables learning in class X-IPA 1 of UM Laboratory Senior High School. This research type is Classroom Action Research. The research result showed that the students’ concept understanding experienced an improvement. The percentage of students who had a high and very high concept understanding from cycle I to cycle II increased from 50.00% to 94.44% of the number of students, while the percentage of students who had a low concept understanding from cycle I to cycle II was reduced from 19.44% to 2.78%.
Prototype of mathematics club module in a co-curricular activity for elementary students
Authors: Primasatya N , Imron IF
Published: June 2021

This article is a part of research on the development program of Mathematics Club as a cocurricular supporting program in a full-day school. The development procedure in this research uses the ADDIE method, but it lacked implementation due to the COVID-19 pandemic. This article specifically elaborates on the prototype of the mathematics club module and its procedure as a co-curricular activity in a full-day school. According to the initial observation, it is concluded that the cocurricular implementation in the full-day school is not optimal. This is because of a lack of school preparation in designing the co-curricular program and its auxiliaries. An alternative offered by researchers to overcome the problem is by designing the Mathematics Club program as well as its module as the teaching module. The mathematics club module displayed the experiment procedures on fraction lesson, to grasp the understanding of the fraction operations concept. The module was also supplied with media that can be used by the students in their experimental activities.
Mathematics literacy abilities and responsibility with realistic mathematics education learning based ethnomathematics
Authors: Wardono  , Mariani S , Kurniati C N
Published: June 2021

The results of observations at SMP Negeri 40 Semarang found that the sense of responsibility and mathematics literacy skills of grade VIII students was not optimal. The purpose of this study was to determine the mathematics literacy skills of students in the classroom using the ethnomathematics based RME to achieve classical completeness and the average mathematics literacy skills of students were better than the average mathematics literacy skills of students in classes using the expository learning model, to determine whether there was an effect of responsibility. towards students’ mathematics literacy. This research method is an experimental quantitative method. The population of this study were students of class VIII SMPN 40 Semarang in the academic year 2019/2020. The sample was taken by using cluster random sampling technique, it was obtained class VIII A as the experimental class and class VIII B as the control class. The results of this study indicate that (1) students ’mathematics literacy in the experimental class achieve classical completeness, (2) the average mathematics literacy skills of the experimental class students are better than the control class students’ mathematics literacy abilities, (3) there is significant influence of student responsibility on mathematics literacy abilities.
Analysis of mathematical creative thinking test instruments on open-ended problems with ethnomatematic nuances
Authors: Munahefi D N , Mulyono  , Zahid M Z , Syaharani E A , Fariz R
Published: June 2021

The purpose of this study was to analyze the mathematical creative thinking ability test instrument in open-ended problems with ethnomathematic nuances. The aspects that must be possessed in a mathematical creative thinking ability test instrument consist of: fluency, flexibility, originality, and elaboration. These four aspects are contained in open-ended questions. Open-ended questions are questions that can be worked on with several answers or various settlement strategies. Ethnomatematics applied to open-ended questions is batik. Batik that has various styles should be able to explore the mathematical creative thinking ability. The method used to collect data on mathematical creative thinking ability is the essay test method which consists of 5 items. The data analysis technique used is qualitative and quantitative data analysis. Qualitative analysis was carried out by examining the validity of the content. Meanwhile, the quantitative analysis was carried out by using the classical test theory approach which the calculations were assisted by the Microsift Excell program.
Students’ Creative Thinking Process in Solving Ill-Structured Problem at Eight Grade Students with High Ability
Authors: Firdausi Y N , Sujadi I , Nurhasanah F
Published: June 2021

Creativity and problem solving are important skills in facing 21st century, but students’ creativity in solving mathematics problem is various. Therefore, to improve students’ creative thinking, teacher have to know their creative thinking process. The purpose of this research is to describe the students’ creative thinking process in solving ill-structured problem at high-ability students. The research type is descriptive with qualitative approach. The subjects of this study were two high-ability students. Result of the research showed that in the preparation stage, high-ability students understand the problem well and collected the datas and informations known from the problems. In the incubation stage, they were silent for a moment; reread the information obtained from preparation stage; made an illustration from the problem; and recalled ideas from their prior knowledge. In the illumination stage, high ability students found another idea by analyze the previous idea, planned the problem solving carefully; connected mathematic ideas to the reality; and continued solve the problems use the idea obtained from the previous stage. In the verification stage, high-ability students rechecked the calculation; verified the ideas; and revised the invalid ideas.
The effect of problem-based learning to improve students’ metacognition skills in solving mathematical problems based on cognitive style
Authors: Izzati L R
Published: June 2021

This paper aims to find out the effect of problem-based learning (PBL) to improve students’ metacognition skills in solving mathematical problems based on cognitive style. Aspect of metacognition skills in this study are planning, monitoring, and evaluating. Dimension of cognition style in this study are field dependent (FD) and field independent (FI). Participants in this study are 36 students in junior high school. The instrument in this study is 27 statements metacognition skills questionnaire to determine the level of metacognition skills and Group Embedded Figure Test (GEFT) developed by Witkin to find out the types of students’ cognitive styles. The statement was validated by 3 expert validators. The findings of the study revealed that problem-based learning (PBL) could be an effective learning model to improve metacognition skills in solving mathematical problems both of field dependent (FD) and field independent (FI) students.
Analysis of students’ problem-solving ability in solving geometry problem
Authors: Rejeki S , Riyadi  , Siswanto
Published: June 2021

This study aimed to describe the students’ problem-solving ability in solving Geometry problems. This research was a qualitative descriptive study with 6 students as research subjects at SMP Negeri 1 Piyungan Bantul. The data collection methods used in this research were tests and interviews. This research used the triangulation method to determine the validity of data which was obtained by the researcher. The results showed that the percentage score for the indicator of understanding the problem was 31.48%, planning strategies to solve problems was 57.41%, implementing strategies to solve problems was 55.56%, and concluding by 31.48%. At the level of problem-solving ability, there is one high category student, 3 medium category students, and 2 low category students. This is because students lack self-confidence, lack of understanding of problems, weakness in understanding concepts, principles, and mathematical formulas of geometric material, and lack of skills in calculations. Therefore, it is necessary to provide more and more complex questions so that students are familiar with various kinds of non-routine questions. Also, it is necessary to have an understanding of mathematical concepts, principles, and formulas so that they do not have a negative impact on students in solving advanced material geometry problems.
Learning cylinder through the context of Giant Lopis tradition
Authors: Nursyahidah F , Albab I U , Saputro B A
Published: June 2021

Geometry comprehension is a significant aspect and basis for studying mathematics. However, geometry is nonetheless a challenging material for students, particularly a cylinder. Therefore, this study aims to establish a learning trajectory using the Giant Lopis tradition as a context to help students understand the idea of a cylinder. The approach used in this study was Realistic Mathematics Education, named PMRI in the Indonesian version. The subject of the study is the ninth grade students of SMP 38 Semarang, with the involvement of 6 students who are selected in diverse abilities. The methodology applied was Design Research that consists of three stages, namely: preliminary design, experiment design, and retrospective analysis. However, this study reveals only the findings of the design experiment, which is a pilot experiment in particular. The data was compiled using various methods, e.g., observation, video recordings activities in class and group study, collecting student data, and interviewing students. The learning activities of students involve four activities: identifying the elements of the cylinders through an interactive video of Giant Lopis tradition, finding the surface area of the cylinder, finding the volume of the cylinder, comparing surface area or volume for different size of cylinder, and solving contextual problems of a cylinder.
Effectiveness of Lipa’ Sa’be Mandar on the Mathematical Representation Ability of Students of SMK Mega Link Majene
Authors: Ahmad H , Samad I , Febryanti
Published: June 2021

This research is an experimental study that aims to see the effectiveness of instructional media based on Mandar culture, in this case, lipa ’ sa’be Mandar. The instrument used in this study was a test to measure the ability of mathematical representations, student activity observation sheets, and student responses to learning. The subjects of this study were 30 students of class X TKJ SMK Mega Link Majene. The data analysis used is descriptive and inferential statistical analysis. The analysis results showed that the average value of the students’ mathematical representation ability was 90.97 in the medium category. Student activities are in the very active category, namely 80%, and student responses to learning give a very positive response of 80%. The t-test shows the value of sig. (2-tailed) = 0,000 < α = 0,05, thus the application of lipa’ sa’be Mandar learning media is effective on students’ mathematical representation abilities.
Misconceptions of senior high school students in solving high-order thinking skills questions
Authors: Anggara B , Wandari W
Published: June 2021

In the 21th century, the progress of learning mathematics requires students to have high-order thinking skills. In the class, it can be seen that the students high-order thinking skills are still low, which is addressed through the student’s difficulties in solving high-order thinking skills questions. One way to find student difficulties is to first analyze the form of misconceptions that students experience when solving high-order thinking skills questions. When the form of misconception can be explained, solutions to develop student’s high-order thinking skills will be found. The purpose of this research is to develop high-order thinking skills questions that can diagnose the misconceptions experienced by high school students and to determine the forms of misconceptions high school students in solving high-order thinking skills questions. The form of misconception that is the core of this research is viewed from the learning process of mathematics in the classroom and the ability to solve high-order thinking skills questions. The research method used in this research is qualitative research methods. Research subjects in this study were several high school students in Cirebon. This study uses four high-order thinking skill questions that have been validated by CVR and CVI. This study succeeded in revealing that many students experienced theoretical misconceptions which in students having difficulty changing problems into simpler forms of mathematics. Classification and correlational misconceptions become factors inhibiting students in developing their creating skills. The misconceptions found can be used as a reference for teachers and other researchers in developing mathematics learning based on the abilities and potential of students.
The influence of modelling the way tutorial activities in improving self-efficacy of elementary teachers as Universitas Terbuka students
Authors: Pakpahan S.P. , Sapta A.
Published: June 2021

This study aims to determine the self-efficacy of teaching for elementary school teachers who are also students of Universitas Terbuka, the Open University in Indonesia. This study’s design is by providing modelling the way learning model for students who take elementary mathematics learning courses. The research sample was students from Universitas Terbuka in Batubara learning center and Madina learning center, North Sumatera. The results showed a significant difference in teaching self-efficacy between students who took part in the tutorial using modelling the way learning method and using conventional methods. It can be concluded that the use of modelling the way learning methods in tutorial activities can lead to self-efficacy teaching students when teaching in their respective classes.
Developing learning materials of educational statistics assisted ICT and mind map for undergraduate students of elementary school teacher education
Authors: Trimurtini  , Zaenuri  , Wardono
Published: June 2021

This study aimed to develop teaching materials in the educational statistics course based on the ADDIE model (Analysis, Design, Development, Implementation, Evaluation) and its effectiveness on students’ data analysis skills. The subject of this research are undergraduate students and lecturers of Elementary School Teacher Education Universitas Negeri Semarang. The data collection instruments used were questionnaires, observations, and tests. Analysis of the data used descriptive statistics, the Wilcoxon sign test and n-gain. The needs analysis stage was carried out on 56 students and three lecturers through focus group discussion activities. Seventy-one undergraduate students and twelve lecturers filled the reading questionnaire of teaching materials design. At the stage of developing the teaching materials, the material expert rated Draft 1 with a score of 87.5% and the linguists rated Draft 1 with a score of 81.25%. The learning implementation process consists of six learning experiences in face-to-face and online learning environments, with thirty-three undergraduate students’ participation. According to lecturers and students’ opinions about the use of ICT and mind maps as a complement in the design of teaching materials for the educational statistics, courses show that both lecturers and students had positive opinions on the usage. The lecturer used the developed learning materials according to the course contents for six weeks in their courses. At the end of the implementation, it was found that the student’s ability to analyze data increases the n-gain average value is 0.55 with the moderate category
Ethnomathematics: geometric analysis of historical buildings ngawen temple in Magelang
Authors: Pamungkas Megita Dwi , Zaenuri  , Wardono
Published: June 2021

The analysis of historical buildings Ngawen Temple has a purpose of knowing the history and knowing the approach to the geometry. This type of research is descriptive research with a qualitative approach. The data collection techniques used in this research are interviews and documentation (observation) directly. The interview was done with the temple officers who were around the building, and the documentation was taken directly. The data analysis technique is done by analyzing the buildings related to the geometry, such as the shape of the building on the Ngawen temple. The results of this study were obtained namely, Ngawen Temple set in Buddhism. The Ngawen temple complex consists of five temples that line the parallel from north to south. Temple building facing the east. From the south of Ngawen Temple I, II, III, IV, and V, with each temple to plan the square. One of the uniqueness of Ngawen temple is the existence of 4 lion statues in every corner of temple II and temple IV. The shape of the Ngawen temple resembles the geometry of the cuboid, the rectangular pyramidal frustum, and the rectangular pyramid.
Mathematic creative thinking ability based on student metacognition in blended learning model with e-module
Authors: Kusuma D , Zaenuri  , Wardono
Published: June 2021

The objectives of this study are 1) to find out how the effectiveness of the Blended Learning model with E-Module in improving creative thinking skills. 2) Describe the ability to think creatively in terms of students’ metacognition. This research is a mix method research with a sequential explanatory design that combines quantitative analysis and qualitative analysis. Quantitative analysis is used to determine the effectiveness of the Blended Learning model while quantitative analysis is to determine the creative thinking process in terms of students’ metacognition. The research subjects were students of class X SMA Negeri 1 Salatiga. The results showed that the Blended Learning Model with E-Module was effective for increasing students’ creative thinking abilities. Qualitative analysis showed that students with high metacognition were able to meet all the criteria for creative thinking abilities including fluency, flexibility, novelty and elaboration. Students with moderate metacognition cannot meet all indicators of creative thinking ability, students still have difficulty in flexibility and novelty indicators. Students with low metacognition have many deficiencies in fulfilling creative thinking skills, only fluency indicators can be fulfilled properly by these students. Based on these results, it shows that metacognition has a role in students’ creative thinking abilities.
Developing the teaching materials of algebra matrix based on M-APOS model to develop students’ autonomous learning on math
Authors: Kintoko  , Wardono  , Zaenuri  , Saefudin Abdul Aziz
Published: June 2021

This study aims to develop Matrix Algebra course teaching materials based on the M-APOS learning model to improve students’ mathematical self-regulated learning with valid, practical, and effective criteria. This is a research and development (research and development) using the ADDIE method (Analysis, Design, Development, Implementation, and Evaluation). Validity test of teaching material was by expert judgment. The practicality test of teaching material was conducted by evaluating 5 small-scale test subjects and 24 large-scale trials. The effectiveness test of teaching materials is carried out by implementing the Matrix Algebra course by analyzing self regulated learning. The stages in this study include the Analysis, Design, Development and Evaluation stages. 1) The analysis phase includes analyzing the needs, characteristics of students, and curriculum. 2) The design phase includes activities to determine the product design (teaching material) to be developed, an outline of the presentation of the material, collecting references and compiling assessment instruments. 3) Development phase, namely the activity of making and testing teaching materials. 4) The evaluation phase shows that the development of teaching materials in the form of Matrix Algebra modules based on the M-APOS learning model can improve students’ mathematical self regulated learning in a valid, practical, and effective criteria.
Students’ mathematical reasoning abilities on number sequence pattern material: viewed from a gender perspective
Authors: Subekti F E , Zaenuri  , Wardono
Published: June 2021

This study aims to describe mathematical reasoning abilities in terms of the gender of grade VIIIA students at MTs Negeri 3 Banjarnegara. The study population was students of MTs Negeri 3 Banjarnegara by taking samples of class VIII A. Sampling using a cluster random sampling technique. Data obtained using tests, interviews, and documentation. The data were analyzed and described quantitatively. The results showed that: 1. The percentage of male students’ ability to give assumptions based on the formed pattern was 54.19%, while female students were 64.71%; 2. Students’ skills to use a number sequence pattern to draw conclusions about male students were 66.67%, while female students were 76.47%; 3. Male students tend to make guesses by briefly writing down the pattern, while female students describe their tribes first; 4. Male students tend to misunderstand questions so that they are wrong in concluding, and 5. female students draw conclusions based on the results of describing their ethnic groups.
Analysis of students’ error in solving math problem-solving problem based on Newman Error Analysis (NEA)
Authors: Siskawati E , Zaenuri  , Wardono
Published: June 2021

This study aimed to describe the students’ fault in finishing the problem-solving questions. This research uses the descriptive qualitative method. The research subjects are as much as 40 learners. The results are 1) most of the male students’ fault are in encoding aspect 199 or 41.29%, 2) most of the female students’ fault are in the process skill and encoding aspect 189 or 28.64%, 3) most of the fault of the grade learners are found in the process skill and encoding aspect 175 or 36.31%, 4) the fault of the under grade students are found in encoding aspects 213 or 32.27%, 5). The causes factor errors 1) The students cannot identify information of questions, 2) The students do some false in writing the formula and cannot determine the elements up flat, 5) The students do not know how to count the concept and to finish it, 6) The students write the answer incorrectly. The recommendation to solve the cause of the error are reading errors, comprehension errors, transformation error, error process skills, and encoding error solution.
Description of students’ mathematical concept understanding ability, in terms of initial mathematical ability
Authors: Agustina L , Zaenuri  , Wardono
Published: June 2021

The purpose of this study was to determine the description of students’ ability to understand mathematical concepts in the basic introductory course of mathematics in terms of their initial mathematical abilities. This research is a qualitative research. The subjects in this study were students of the Mathematics Education Study Program who took an Introduction to Basic Mathematics at Indraprasta University PGRI Jakarta. The sampling technique used was purposive sampling, while the instruments used were documents (test results of students’ initial mathematical abilities and understanding of mathematical concepts), observation sheets, interview guides, and researchers. The research data were collected using triangulation techniques. The results of this study were that the students’ initial mathematical abilities were good enough, but the indicators of student functional understanding were still a little difficult.
Independent learning analysis of blind students using mathematics braille modules
Authors: Rahmawati F , Pamungkas M D , Andreyanto F
Published: June 2021

In learning, all students are directed to be able to develop independence, one of which is independent learning. This study aims to determine the impact of the use of mathematics braille modules on the learning independence of blind students at Mts Yaketunis Yoyakarta. This research is a qualitative descriptive study. The subjects in this study were 6 students consisting of 1 low vision student, 3 total blind students, and 2 disabled students (blind and mentally retarded in the mild category). Data collection techniques used in this study were questionnaires and observation sheets. The results of this study indicate that the use of the mathematics braille module has a positive impact on the learning independence of blind students at MTs Yaketunis Yogyakarta. The response of blind students to the use of mathematics braille modules in the learning process is positive.
The experimentation of the TTW and the NHT learning models on polyhedron viewed from the problem solving ability
Authors: Rahmawati N K , Zaenuri  , Wardono
Published: June 2021

The study aims to obtain empirical data regarding the impact of models of learning models on mathematics outcomes when seen from the problem-solving ability. In this study, an experiment was conducted on the (Think talk write) TTW, (Numbered Heads Together) NHT and direct learning models. This study used a quasi-experimental study consisting of 2 experimental groups and 1 control group. In the experimental class, TTW and NHT were applied, while in the control class, direct learning was applied. The number of samples is 298 people, with details of 100 people from experimental class I, 99 people from experiment class II 99, and 99 people from the control class. The instruments in this study were tests and documentation and had met Validity and reliability. The research data were analyzed using two-way anava with different cells, and had met the prerequisite tests for normality and homogeneity. Research shows that (1) TTW are better than NHT and direct learning, and NHT are better than direct learning. (2) High student problem-solving ability provide better mathematics learning outcomes than medium or low student problem solving ability, moderate student problem solving ability are better than low student problem solving abilities, (3) there is an association between the learning model used and the student problem solving ability on student mathematics learning achievement.
Developing e-learning media on education statistics subject
Authors: Purnomo E A , Dalyono B , Lestariningsih E D
Published: June 2021

Lecturers as teachers must be able to create engaging, innovative learning based on ICT. Through this basis, it is necessary to develop e-learning learning media. Based on preobservation at UT students on the Education Statistics subject, it is concluded that 1). Student’s learning outcomes were lacking, 2). many students could only absorb theory but could not apply it to daily problems. One of the solutions to overcome these problems is by developing elearning media. Through the advantages of e-learning, e-learning learning media will be developed in the Education Statistics subject. This research aims to produce valid e-learning media. The subjects of this study were students of UT Semarang Pokjar Kendal district. The development of instructional media designs used the 4-D model from Thiagarajan, Semmel, and Semmel. Methods of data collection using questionnaires, interviews, and observations. The results showed that design of e-learning learning media was designed according to the characteristics of UT students. The validation results of 3 validators with an average of 4.1 with very valid category. The results of the legibility test were carried out twice with an average result of 87% which was included in the very good category.
Analysis mathematical representation ability by self-efficacy of prospective mathematics teachers
Authors: Hanifah  , Waluya S B , Isnarto  , Asikin M , Rochmad
Published: June 2021

This qualitative research purpose to analyze the mathematical representation ability of students in solving problems viewed from the level of self-efficacy. This research was conducted on 6E grade of mathematics education students at the University of Singapore Karawang. This research is focused on the ability of visual representation, equations representation or mathematical expressions, and words representations or written texts as seen from the level of student self-efficacy. The dimensions of self-efficacy include magnitude, strength, and generality. This study uses a qualitative approach with data collection techniques such as tests, questionnaires and interviews. The results showed that the ability of mathematical representation is very important and needed by students in understanding material and solving problems, if the ability of mathematical representation is lacking then it causes a lack of student understanding of the material given so that students have difficulty in working on given problems. A good mathematical representation ability is supported by good student self-efficacy, with optimism and never give up in working on any given problem by thinking of strategies for solving the solution.
Increasing mathematical literacy ability and learning independence through problem-based learning model with realistic mathematic education approach
Authors: Maslihah S , Waluya S B , Rochmad  , Kartono  , Karomah N , Iqbal K
Published: June 2021

The purpose of this study was to see the effect of implementing the PBL model with the RME approach on mathematical literacy skills and learning independence. This research is a combination research using a sequential explanatory design. The quantitative research method was carried out in the first stage by following a quasi-experimental model which was designed in the form of a non-equivalent (pre-test and post-test) control group design then continued by further analyzing the results of the quantitative method using qualitative methods. This study shows that there is an effect of the Problem Based Learning model with the Realistic Mathematic Education approach on mathematical literacy skills and learning independence and describes the relationship between independent learning and mathematical literacy skills.
Learning effectiveness with seven jump method assisted with e-module on statistics problem solving
Authors: Sukestiyarno Y L , Hartutik
Published: June 2021

In this era of disruption, it is time to invite students to learn independently. This study applies a module-assisted Seven Jump learning model for class X students with statistics material. The research scenario begins with clarifying assignments, determining problems, and providing problems. The student’s task is to analyze, evaluate needs to test hypotheses independently. This independent activity process is presented and delivered through an e-module. This study aimed to get effective learning, namely increasing student learning independence, the positive influence of independent learning to the achievement of problemsolving abilities, and the problem-solving abilities achieve learning completeness. This experimental quantitative research with the scope of class X statistics material with the variables of students’ learning independence and problem-solving abilities. Data obtained by observation and tests and processed by increasing N-Gain analysis, regression test and t-test completeness. The results showed that students with independent learning through the Seven Jump stages that have been packaged in e-modules condition the students to solve problems by discussing, looking for additional literature to test hypotheses. It is proven that the students’ learning independence has increased, the N-Gain value is 1.4, and it influences problem-solving ability by 72%. From the test of learning outcomes, the students’ problem-solving abilities reached an average of 77, exceeding the completeness score of 70. Thus the effectiveness of learning was achieved.
Developing electronic bahasa Indonesia (E-BIPA) 2.0 version media to improve critical literacy of foreigner students
Authors: Ahmadi F , Hapsari I P , Irvan M F
Published: June 2021

In this era of industrial revolution 4.0, technology is growing rapidly with the emergence of high-tech electronic goods equipped with internet facilities to further speed up the communication process. The objective of this research was to develop Electronic Bahasa Indonesia (E-BIPA) 2.0 Version to improve critical literacy of foreigners’ student. This study is Research and Development (R&D) using ADDIE model. The data of this study were obtained through observation, interviews, questionnaires, and scale. The feasibility of E-BIPA 2.0 Version media was obtained from assessments by media and material experts. The results of the validators indicate that the E-BIPA 2.0 Version is very feasible to be seen from the media aspects with score is 85 and from material aspects with score is 87. Based on the results, the E-BIPA Version 2.0 media is very feasible for Indonesian lecturer to be used in teaching foreigner students. The E-BIPA 2.0 Version media was expected to support critical literacy of foreigner students in learning Indonesian language.
The measurement of self-efficacy students in mathematics lesson tenth students of senior high school
Authors: Medyasari L T , Zaenuri  , Dewi N R
Published: June 2021

Self-efficacy can be defined as a person’s assessment of abilities that the individual has in achieving something that has been targeted. The study aims to describe self-efficacy on students at mathematics lessons. The population in this study is the fifth annual public high school class in 2019/2020. The sample in this study is the 10th X Science class at the state high school of 5 Semarang using the simple random sampling technique. The instrument used in this study is a non-test instrument of self-efficacy of 20 statements and observations. The data analysis technique used in this study is a descriptive data analysis. The research shows that the average of the score on the overall scale of self-efficacy belongs to a positive category. The probability of self-efficacy in the study of mathematics consists of students with high selfefficacy by 16.67%, students with medium self-efficacy are 63.44%, and students with low selfefficacy are at 20%.
Academic achievement analysis of Universitas Negeri Semarang students using the naïve bayes classifier algorithm
Authors: Purwinarko A , Hardyanto W , Aryani N P
Published: June 2021

This study aims to evaluate the academic data of students in third year and classified in the category of students who can graduate on time or not. This system uses students master data and student academic data as input data. Data of students who have graduated will be used as training and testing data while the data of students who have passed will be used as target data. Input data will be processed using the Naïve Bayes Classifier (NBC) data mining algorithm to form a probability table as the basis for the student graduation classification process. The output of this system is in the form of a classification of student academic performance that is predicted to pass and provides recommendations for the graduation process on time or graduates in the most appropriate time with optimal grades.
Designing a performance dashboard as a monitoring tool at PT Sun Star Motor MT Haryono Semarang: data approach
Authors: Aginsha A G , Noranita B
Published: June 2021

Information Management of the performance measurement of PT Sun Star Motor MT Haryono Semarang currently still provides less valuable information. This study aims to design a performance dashboard as a tool for monitoring company performance at PT Sun Star Motor MT Haryono Semarang so that information about company performance can be more valuable, especially for leaders. This research was conducted by taking into account the needs of users based on the company’s KPI. This research method refers to Hariyati’s “Dashboard Development Methodology.” This research phase is identifying needs and reviewing dashboard information. The design produced three performance dashboards: Main Dashboard, Service Division Dashboard, and the Unit Division Dashboard. The first dashboard presents performance information of PT Sun Star Motor MT Haryono Semarang as a whole, those who use the dashboard are the branch and acc manager. The second dashboard presents performance information from PT Sun Star Motor MT Haryono Semarang and the party that has access is the service manager. The third dashboard contains company performance information for unit divisions; the user is the supervisor. The dashboard information that has been designed is then reviewed by the user based on the company’s KPI and user needs.
A sentiment analysis study for twitter using the various model of convolutional neural network
Authors: Sartini  , Subiyanto  , Alim M M F
Published: June 2021

Sentiment analysis about natural language processing had been developed by various methods such as machine learning. In Indonesia, fewer studies on sentiment analysis have been studied using machine learning with specific datasets. The use of machine learning results in low accuracy that is applied in a wider scope. Therefore, the deep learning method developing to improve the accuracy of sentiment analysis. This paper presents different configuration parameters based on deep learning using the Convolutional Neural Network (CNN) algorithm to improve accuracy performance. The CNN models are presented by various parameters such as the number of convolutional layers, number of filters, and filter size to analyze the model’s performance. Indonesian-Sentiment-Analysis-Dataset which consists of 10.806 tweets has been used with the Word2Vec model for Indonesian as a word vector representation. The CNN models are trained on 80% of the dataset and tested on the remaining 20% of the dataset. The proposed CNN models’ results are compared with machine learning algorithms such as SVM, KNN, and SGD. The CNN models performed better than machine learning and got the best accuracy of 81.4% for general sentiment analysis in Indonesian.
Efficient feature selection analysis for accuracy malware classification
Authors: Romli R N , Zolkipli M F , Osman M Z
Published: June 2021

Android is designed for mobile devices and its open-source software. The growth and popularity of android platform are high compared to another platform. Due to its glory, the number of malware has been increasing exponentially. Android system used a permission mechanism to allow users and developers to manage their access to private information, system resources, and data storage required by Android applications (apps). It became an advantage to an attacker to violent the data. This paper proposes a novel framework for Android malware detection. Our framework used three major methods for effective feature representation on malware detection and used this method to classify malware and benign. The result demonstrates that the Random forest is with 23 features is more accurate detection than the other machine learning algorithm.
Improved accuracy of recognizing of low-quality face images using two directional matrix in 2D-PCA algorithms and euclidean distance
Authors: Kuncoro R D K , Sugiharti E
Published: June 2021

Face recognition is a technique that can be used to distinguish the characteristic facial patterns of a person. A very influencing factor in the facial recognition process is image quality, so it can affect the level of accuracy. Improving the accuracy of low-quality facial recognition can be done by processing the image for its feature extraction using Two Directional Matrix on 2D-PCA. From the extraction process, the Eigenfaces value is then generated to be classified. Image classification is done by using Euclidean Distance. Furthermore, the accuracy results between image recognition with or without Two Directional Matrix will be compared. The data used were the AT&T face of database and database of Essex. Of the 18 tests carried out on the Two Directional Matrix method, it was proven to improve facial recognition accuracy by as many as 12 trials. In 5 other experiments the accuracy decreased and 1 experiment was unable to increase or decrease facial recognition accuracy. The highest accuracy result in the experiment using AT&T was 98.25%, while in Essex it was 97.27%. Suggestions for further research by conducting experiments with more diverse dataset ratios in order to get better low-quality image accuracy results.