bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of Mathematics Student Worksheets Through the Approach Model Eliciting Activities (MEAs) on the Triangle Material
Authors: Munir N P , Anas A , Sunarti  , Mursalin N R , Natsir I 
Published: June 2021

Abstract
Student Worksheet is one of the teaching materials needed by teachers on the mathematics learning process to achieve basic competencies needed. The objective of this study is protype final, quality, and effectiveness of the development of worksheets based on the MEAs approach of triangel material. This type of R & D (Research and Development) research adopts the ADDIE development model. The trial sujects in this study are Grade VII students of SMP Negeri 1 Suli, Luwu Regency. Tehnique collection data that used were validity data obtained from validation sheets by experts, practicality data obtained from student response questionnaires and effectiveness data obtained from student learning outcomes tests. The data obtained were analyzed using descriptive statistics. The results of this study indicate that: The final prototype of the worksheet product developed had suitable with the principles of the MEAs approach, ther are: identifying problems, simplifying problems, building mathematical models, transforming and solving models, and interpreting the results; the quality of worksheet for validation is 85% in the very valid category, the average practicality is 73% in the practical category; and the effectiveness of the student worksheet score average 87% is in the very effective category increasing student learning outcomes in the material triangle.
The development of 3D animated video for mathematics learning in elementary schools
Authors: Ultra Gusteti Meria , Rifandi Ronal , Gustya Manda Trysa , Putri Melani 
Published: June 2021

Abstract
The background of this research is due to the limited learning media in the form of 3D animated videos for Mathematics subjects. This study aims to develop a valid 3D animated video on the material of the addition and subtraction of integers in elementary schools. The development model used is the DDD-E model. The 3D animated video developed was validated by three validators in term of the content and the media. The average validation value for content validation and media validation are 3.33 and 3.67 respectively. These results indicate that the 3D animated video developed is in very valid criteria.
Defragmentation of Preservice Teacher’s Thinking Structures in Solving Higher Order Mathematics Problem
Authors: Wulandari S , Gusteti M U 
Published: June 2021

Abstract
Demands to have higher order thinking skills is not only aimed for students. A teachers must have that skills first.The problem now is the lack of preservice teacher’s competence in solving mathematics problem with high order thinking skills. This study aims to find out the construction errors and problem solving by preservice teacher when solving problem with high order thinking skills, especially on trigonometry material. In order to repair these errors, a defragmentation process is carries out on their stucture of thought. The qualitative research methods applied to describe thinking structures and the form of defragmentation given. The research data were analyzed using Miles and Huberman’s model of data analysis, namely reducing data, presenting data and making conclutions. The research found that there are three forms of concept’s construction errors and solving problem, they are wrong pseudo, mis-logical construction and hole of construction. Based on the findings of errors, the researcher performs a defragmentation process of thinking structure by providing scaffolding. The form of scaffolding given were giving a recommendation to rechecking, recall existing schemes fo assimilation, and explaining the actual logics.
The impact of an exploratory approach in teaching mathematics to students’ creative thinking abilities
Authors: Haji S , Yumiati  
Published: June 2021

Abstract
The purpose of this study is to determine the impact of an exploratory approach on the creative thinking abilities of Junior High School students in Bengkulu City. This type of research is experimental research with Posttest-Only Control Group Design. The research sample is 87 students of 8th grade at SMPN 1, SMPN 11, and MTs Ja-Al Haq in the second semester of 2019/2020 Academic Year. Based on the Kruskal_Wallis H. test, the asymp value is 0.00 smaller than 0.05, so there is differences in students’ creative thinking abilities, which is taught by using an exploration approach to teaching mathematics in high, middle and lower level schools. The average value of students’ creative thinking skills from each school level is as follows: upper level school is 63.34; middle level schools is 59.38, and lower level school is 49.27. The ability to think creatively High School Junior high level students better than lower school students. The ability to think creatively of middle level Junior High School students is better than lower level school students. However, based on the Mann-Whitney test, a significance value of 0.489 is greater than 0.05 between the ablitiy of the creative thinking of high school students and middle school students. So, there is no difference in the ability to think creatively High School Junior high school students with middle school students.
Mathematics Teaching Innovations and The Evaluation during the Pandemic: What Else Can We Do to Help Our Students Learning?
Authors: Iswanti  , Novitasari Mara Muhlasah , Suryanti Sri , Raharjo Suko 
Published: June 2021

Abstract
This paper describes the innovations in mathematics teaching for the D3 Dep. of Electrical Engineering Politeknik Negeri Semarang (Polines), Indonesia during the corona pandemic and the evaluation. The case study method is chosen to observe the qualitative and quantitative data based on three considerations, i.e. the technologies, goals and assessments. The results show three things: teaching innovations based on the processes and products and the evaluation. Processes here mean the variety on the technology use in teaching. During the pandemic, not only Whatsapp (WA) application is used to support the teaching but also two learning management systems (LMS), i.e. Elnino (Moodle-based) and Google Classroom (Google-based). These technologies are used simultantly to record the attendances as well as to deliver teaching and assignment materials. Meanwhile, Whatsapp (WA) application is then used specifically for discussions, Google Classroom for submitting assignment and Elnino for managing the grades. Beside the LMS, another technology, i.e. Youtube channel, is used to share teaching materials in the video format. Meanwhile products here mean innovations on the goals and assessments modifications. Goals are simplified into three (out of four) purposes only. While assessments only consist of the two (out of three) individual assignments and two (out of four) group works. As the evaluation given by students’ feedback, more teaching innovations are needed to balance the synchronous and asynchronous teaching approaches. Which means more technologies can be used to conduct online meeting (e.g. Zoom meeting, Google Meet) and interactive online quizzes (e.g. Kahoot, Mentimeter).
Perception of readiness for online learning: Voice from Mathematics Learners
Authors: Suryanti S , Sutaji D , Iswanti  
Published: June 2021

Abstract
This research explores learners’ mathematics readiness for online learning in Universitas Muhammadiyah Gresik. A total number of 125 learners participated in an online questionare in June 2020. The instrument used is student readiness for online Learning (SROL) instrument consisting of four dimensions, online student attributes, time management, communication, and technical. Validity and reliability of SROL instrument were examined. Statistic descriptive students’ perception of data on readiness in online learning was presented, while to look at differences in perceptions of male students and female students used the Anova test. The results showed the technical and communication competencies components were rated high for importance compared to online student attributes and time management. Other results also show that gender has significantly different perceptions of online learning readiness.
Practicality of Realistic Mathematics Education Based Learning Design of Linear Programming For Financial Accounting Major in Vocational High School
Authors: Sutiaharni  , Armiati  , Permana D 
Published: June 2021

Abstract
This study discusses the practicality of Realistic Mathematics Education based learning design of linear programming for financial accounting and major in Xth grade vocational high schools. The research method used is qualitative research. This article discusses the practicality of learning design in the one-to-one evaluation and small group evaluation. The subjects were mathematics teachers and Xth grade students in financial accounting majors at SMKN 2 Padang. The instruments used were interview guidelines and practicality questionnaires. Descriptive techniques are used to describe data from interviews. The practicality questionnaire of learning design is described by data frequency analysis techniques using the formula proposed by Purwanto. The results of the teacher’s questionnaire responses were 89.17% with a very practical category. The results of the student response questionnaire were 77.79% with the practical category. Based on the results of interviews and questionnaires show that the learning design developed has been practically used both for teachers and students in learning linear programming.
Using by E-Learning with Information Theory Adaptive Model to Increase Self-Regulated Learning Students
Authors: Jamaan E Z , Arnellis  
Published: June 2021

Abstract
This study aims to describe the influence of Elitas’ model on self-regulated learning Students and student learning outcomes at Semester January –June 2020 of Mathematics Education Study. The type of research used in this research was descriptive research with the design of one shot case study. The subjects in this study were students who were English for Mathematics course in the scope of 72 people in the FMIPA UNP. The instrument that will be used in this study is in the form of learning outcomes test and student self-regulated learning questionnaire sheets. Analysis of the data used are percentage analysis and to test hypotheses used t-test. The results showed by student learning independence score has a mean of 88.72 and high percentage of independence in using knowledge and experience was 79.17%. Based on student learning outcomes, it was a significant effect of in terms of there are differences in student learning outcomes before and after using the Elita model in EFM lectures.
Cognitive map: strategies for tracking error patterns in mathematics proof
Authors: Prayitno Anton , Dwi Widayanti Febi 
Published: June 2021

Abstract
The difficulty of students in constructing mathematical proof is often seen in the form of solving errors they make. In this case, students’ mistakes in mathematical proof are a reflection of their way of thinking. If these errors are not resolved, it will have an impact on students’ thinking when working on further mathematical proofs. The patterns of student error in constructing mathematical evidence can be identified, namely: 1) proving statements by providing numbers or examples, 2) manipulating incorrect algebra, 3) verifying numerical proof after formal proof, and 4) inability to understand the definition of the statement. Of course, this error pattern needs to be traced more deeply using cognitive maps. Cognitive maps are techniques for representing how subjects think about a particular problem or situation so that researchers can act for the next step. This is, of course, a cognitive map is a person’s perspective on the subject, which is described qualitatively by connecting concepts to be able to predict causal behaviour. Therefore, students’ thought processes of constructing mathematical evidence can be traced using cognitive map.
The profile of prospective physics teachers’ conceptual change based on cognitive style dimensions through collaborative learning on electricity and magnetism topic
Authors: Rahmawati R , Rustaman N Y , Hamidah I , Rusdiana D 
Published: June 2021

Abstract
This study aims to explore conceptual changes of prospective physics teachers on electricity and magnetism topic based on the different of their cognitive style dimension through collaborative learning. The research method used was pre-experiment with pre-test and post-test designs. The sample in this study was 30 prospective physics teachers at a university in Makassar for the first year of the 2018/2019 academic year. Conceptual changes of prospective physics teachers were measured by the four-tier test. The analysis of conceptual changes was divided into three categories, namely not understanding, understanding, and misconceptions. Cognitive style were divided into Field Independence (FI) and Field Dependence (FD) which were measured using the Group Embedded Figure Test (GEFT) standard test. The results showed that there were no FI students who had misconceptions both on the initial and final test but decreased in the category of not understanding (1%), and increased in the category of misconceptions (1%). Meanwhile, FD students experienced misconceptions both on the initial test (34%) and the final test (20%) but decreased in not understanding (2.7%) and increased in understanding (17.7%). The results also provided collaborative learning contributed to improve students’ conceptual changes from misconceptions and not understanding concepts to be understanding concepts.
Assessment of Higher Order Thinking Skills in Genetic Learning: A Validity, Practicality, and Reliability
Authors: Marlina D I , Rahmi Y L 
Published: June 2021

Abstract
The ability of higher order thinking skills students in West Sumatra is still low relatively with an average value in the range of 17.88-38.45. This is evidenced by the existence of trial tests at schools in several areas in West Sumatra. One way to improve the level of thinking ability of students is to develop assessment of higher order thinking skills. This research aims to develop instruments of higher order thinking skills about genetic material that is valid, practical and reliable. This study uses a 4-D models development. The subjects of this study were two biology lecturers from Faculty of Mathematics and Science, Universitas Negeri Padang, two biology teachers and 30 students of class XII SMAN 1 Nan Sabaris. Data were collected by using questionnaire for validity and practicality furthermore for getting value of reliability by using test. Based on data analysis, the value of validity, practicality, and reliability obtained an average of 87.72%, 88.54% and 0,80 respectively. In a nut shell, the instruments which is designed has been valid, practical and reliable, which can be used by teachers to measure and foster students’ of higher-order thinking skills.
A Contextual Biodiversity Handbook to Identify Bintan Coastal Invertebrates
Authors: Amelia Trisna , Sarkawi  , Irawan Bony 
Published: June 2021

Abstract
Contextual teaching and learning is quite important to be applied due to students weakness in connecting between what they learn and how the knowledge will be used. It is a learning system that matches the performance of the brain, to construct patterns that embody meaning, by linking the academic content with the context of learners’ everyday life. By applying contextual teaching and learning the information received is not only stored in short-term memory, which is easily forgotten, but can be stored in long-term memory. Contextual teaching and learning can be applied through various learning components. One of them is by applying appropriate learning resources/learning media to facilitate contextual learning. Through research and development applying Plomp model, a handbook has been developed to identify specific invertebrates exist on the coast of Bintan (the Province of Kepulauan Riau). This handbook was developed through processes namely; (1) collecting invertebrates of the coastal area of Bintan, (2) identifying invertebrates using research publications, (3) displaying content in the form of handbooks applying attractive designs, (4) suggestions for improvements by validators, and (5) test the feasibility through trials in learning. These processes drive the handbook different from most learning resources on this topic that do not specifically provide information about invertebrates exist in Bintan or Kepulauan Riau. The using of handbook encourages 100% completeness in learning mastering for 21 students. Furthermore, it increases learning motivation in a high increasing category.
Development of Bioremediation Learning Materials based on Contextual Teaching and Learning (CTL)
Authors: Astuti Y , Ahda Y , Putri D H 
Published: June 2021

Abstract
Structured learning materials function as ground base for students to read and analyze topic related on deeper level. This succession in learning emerge as a problem in biotechnology course for bioremediation topic at Biology Education Department of Universitas Negeri Padang. Students had to read the latest research articles from national and international indexed journal. However, they had lacked basic concepts in the first place and coumpounded by English as languange barrier. This lead to problem of not achieving learning puporses. Thus, there was a need of structured basic concept learning materials of bioremediation. Bioremediation is a process of reducing organic and inorganic pollutants by organisms in the environment. Bioremediation is about real problems, therefore, learning materials of bioremediation will be integrated with Contextual Teaching and Learning (CTL) pedagogical model, to lead students achieve deep comprehension. This was educational Research and Develompment (R&D) using Plomp model which consists of three phases: preliminary research, development or prototyping, and assessment phase. Data gathered as qualitative and quantitave, through interview, questionnaire and paper based test to assess students’ comprehension of bioremediation. Result of this research showed that learning materials of bioremediation were valid from content, layout and presentation, graphics, and linguistic; practical in use for students and lecturer as users; and effective to improve students comprehension of bioremediation.
Students’ Expectations for Blended Learning Discussion in Higher Education
Authors: Rahmi U , Syafril S , Azrul A 
Published: June 2021

Abstract
This study is aimed to describe students’ expectations toward the implementation of blended learning discussions in higher education institutions. This research was conducted to reflect on the ongoing discussion activities so that they can be improved according to student expectations. This investigation was conducted with a qualitative design. Researchers made observations on synchronous discussions and asynchronous discussions, then conducted in-depth interviews with students. Students are given relevant questions related to expectations of discussion in blended learning. The result of the research showed that students have high expectations for the discussion method carried out in blended learning to get more learning opportunities, higher-thinking level practice, collaborate, express opinions, and respect the opinions of others.
Magnetic triggering — time-resolved characterisation of silicon strip modules in the presence of switching DC-DC converters
Authors: Blue A.J. , Gallop B. , Heim T. , Helling C. , Krizka K. , Li B. , Labitan C. , Mladina E. , Poley L. , Phillips P.W. , Santpur S.N. , Sawyer C.A. 
Published: June 2021

Abstract
Modules for the ATLAS Inner Tracker (ITk) strip tracker include a DC-DC converter circuit glued directly to the silicon sensor which converts the 11 V supplied to the module to the 1.5 V required for the operation of the readout chips. The DC-DC converter unit, consisting of a copper solenoid and custom ASIC, is located directly above the silicon strip sensor and therefore needs to be shielded to protect the sensor from EMI noise created during the operation of the circuit. Despite dedicated shielding, consisting of an aluminium shield box with continuous solder seams encompassing the surface components and a copper layer in the PCB beneath it, module channels connected to sensor strips located beneath the converter circuit were found to show a noise increase. While the DC-DC converter unit causing the underlying EMI noise operates at a frequency of 2 MHz, module characterisation measurements for ITk strip tracker modules are typically performed asynchronously to the DC-DC switching and are therefore averaged over the full range of time bins with respect to the converter frequency. In order to investigate the time dependence of the noise injection relative to the DC-DC switching frequency, a dedicated setup to understand the time-resolved performance change in modules was developed. By using a magnetic field probe to measure the field leaking through the shield box and triggering on its rising edge, data taking could be synchronised with the DC-DC switching. This paper illustrates the concept and setup of such time-resolved performance measurements using magnetic triggering and presents results for the observed effects on signal and noise for ATLAS ITk strip modules from both laboratory and beam tests.
Lepton identification performance in jets at a future electron positron Higgs Z factory
Authors: Yu D. , Zheng T. , Ruan M. 
Published: June 2021

Abstract
Identifying the leptons inside jets is critical for the measurements of Higgs boson and the flavor physics program at the CEPC, a proposed Higgs/Z factory with the main ring circumference of 100 km. Using the CEPC baseline software, we analyze the identification performance of leptons generated inside a jet. The jet leptons are identified with typical efficiency and mis-identification rate of 98% and 1% for energy higher than 2 GeV, with the Z → bb process at 91.2 GeV center-of-mass energy. At the benchmark channel of the CEPC flavor program of B

c
→ τν with τ → eνν, the electrons are identified with inclusive efficiency times purity of 97%, providing sufficient signal selection for the physics potential study. Compared to the single leptons, we found that these jet leptons identification efficiency degrades about 1–3%, and the mis-identification rate increases by less than 1% at the same working point. We analyze this effect and found that it is mainly caused by defects in the particle flow reconstruction code in the calorimeters. The dependence between the performance of the shower reconstruction and the lepton identification is quantified.