JTMT: Journal Tadris Matematika

10.47435 The Contribution of Treffinger's Learning Model to Students' Divergent Thinking Skills

2023-12-06T16:52:21+00:00

Research on the Treffinger Learning Model's contribution to students' divergent thinking ability is a quantitative pre-experimental study. The primary objective is to determine the impact of the Treffinger Learning Model on students' divergent thinking abilities. This research only involved one class that was given treatment without a control class. The population in this research were all grade VIII students of MTs Yasrib Limpomajang in the odd semester of the 2022/2023 academic year. The sampling method employed in this research is cluster random sampling. The instruments used for data collection were learning implementation observation sheets, student activity observation sheets, divergent thinking ability tests consisting of pretest and posttest. The data obtained were analyzed using descriptive and inferential statistical analysis. The results of descriptive statistical analysis indicate that before being taught using the Treffinger learning model, the average divergent thinking ability of students in the pretest was categorized as low. After undergoing learning with the Treffinger model, the average posttest divergent thinking ability increased to a good category. In conclusion, the Treffinger learning model contributes to the improvement of students' divergent thinking abilities in understanding numerical pattern material.

10.47435/jtmt.v4i02.2282 The Effect Of The Geogebra-Assisted Group Investigation Model On Student Learning Outcomes In Elementary Algebra COURSES

2023-12-24T20:12:39+00:00

This research was conducted with the aim of finding out the effect of the Group Investigation learning model with Geogebra tools on the learning outcomes of elementary algebra students in the Bachelor of Mathematics Education study program at Bengkulu University. The type of research carried out was quasi experimental research with a pre-test post-test control group design. The research sample was students from the Bachelor of Mathematics Education study program at Bengkulu University, semester 1A with a total of 29 students and semester 1B with a total of 29 students. Semester 1A students applied the Group Investigation model assisted by Geogebra and semester 1B students applied the conventional method. The data was analyzed statistically descriptively and inferentially using t-test and obtained a value of ????−???????????????????? or ????????????<0.05, namely 0.00<0.05, so it can be concluded that the use of the Group Investigation learning model assisted by Geogebra has affected student learning outcomes. Bengkulu University's Bachelor of Mathematics Education study program is effectively applied to elementary algebra learning in class and has an influence in improving student learning outcomes

10.47435/jtmt.v4i02.1916 Technological Pedagogical Content Knowledge (TPACK) Teacher in Teaching Geometry in Grade V Elementary School

2023-12-22T17:01:09+00:00

This study aimed to determine the level of Technological Pedagogical Content Knowledge (TPACK) of fifth-grade teachers at Ma’rang District, Pangkep Regency, particularly on geometry. This research uses the descriptive qualitative type of research. The participants were three fifth-grade teachersfrom SD Negeri 6 Pitue, SD Negeri 13 Padang Lampe, and SD Negeri 20 Alesipitto. These schools were chosen because they were once the targets of the Kampus Mengajar Program, while one of the program’s activities was to assist in adapting technology in schools. The data collection used observation and interview techniques. The data analysis consists of data condensation, data presentation, and conclusion. The research results show that the teacher occasionally delivered geometry subject matter using technological devices such as a laptop and projector, as well as the Microsoft PowerPoint application. The use of technological devices and applications in learning was based on teachers’ consideration to make the lessons enjoyable and easy to understand by the students. The teachers also used WhatsApp social media to facilitate communication with students and parents. The obstacles to using technology in learning were the internet network which was not good enough and technological tools that were broken or even non-existent. The teachers’ consideration of the proper use of media in learning shows that teachers had good pedagogical and content knowledge, even though they had not optimally utilized technology. The TPACK of the teachers, especially in geometry, is still at the recognizing level.

10.47435/jtmt.v4i02.1964 The Influence Of Rme-Based Teaching Media Assisted By The Pixton Application On Students' Interest In Learning Mathematics

2023-12-21T16:59:55+00:00

The type of research conducted was quantitative research using quasi-experimental methods and The Pretest-Posttest Non-Equivalent Control Group design with the aim of knowing significant differences between RME teaching media assisted by the pixton application and conventional teaching media on students' interest in learning mathematics and which learning media is more affective . The samples used were students of class VIII.2 as the control class and students of class VIII.6 as the experimental class. The data collection process uses a questionnaire using a Likert scale, where the Likert scale is an ordinal scale, so the data analysis uses non-prametric statistics Mann Whitneyy U test. Based on data analysis with the Mann-Whitneyy U test, Asymp.Sig values are obtained (2- tailed) is 0.029. This significance value is less than 0.05 which results in H₀ being rejected and H₁ being accepted. So from this analysis it can be concluded that learning media based on Realistic Mathematics Education assisted by the pixton application is proven to be more affective in increasing students' interest in learning mathematics in SPLDV material compared to conventional learning.

10.47435/jtmt.v4i02.1984 Development of Instagram Filters in Interactive E-Books Mathematics Learning Build a Flat Side Space

2023-12-24T17:02:18+00:00

Abstract

In facing the challenges of the 21st century, mathematics must be studied well in the digital world, so that digital learning media can be said to be important in the learning process. This study aims to develop an interactive E-book channeling medium on flat-sided space building materials. The subjects in this study were class VIII students of SMP Negeri 1 Salatiga. This research is Research and Development research. The development model in this study is ADDIE (Analyz, Design, Development, Implementation, and Evaluation). Data collection techniques from this interactive E-book development research are observations, tests, and questionnaires for the assessment of validation, practicality, and effectiveness of interactive E-book media to build a flat side space. The final results of the media validity data analysis are 96.67%, the validity of the material is 86.67%, the practicality is 100%, and the effectiveness of having a significant value of 0.000 or less than 0.05 can be stated that the interactive E-book learning media is "valid, practical and effectively used as a learning medium for students.

Abstrak

Dalam menghadapi tantangan abad ke-21 matematika harus dipelajari dengan baik diera digital, sehingga media pembelajaran digital dapat dikatakan penting dalam proses pembelajaran. Penelitian ini bertujuan untuk mengembangkan media pembelakaran E-book interaktif pada materi bangun ruang sisi datar. Subjek dalam penelitian ini adalah peserta didik kelas VIII SMP Negeri 1 Salatiga. Penelitian ini adalah penelitian Research and Development atau pengembangan. Model pengembangan dalam penelitian ini ialah ADDIE (Analyz, Design, Development, Implementation, and Evaluation). Teknik pengumpulan data dari penelitian pengembangan E-book interaktif ini adalah observasi, tes, dan angket untuk penilaian validasi, kepraktisan, serta keefektifan media E-book interaktif bangun ruang sisi datar. Hasil akhir analisis data kevalidan media yaitu 96,67%, kevalidan materi yaitu 86,67%, kepraktisan yaitu 100%, dan keefektifan yaitu memiliki nilai signifikan 0,000 atau kurang dari 0,05 dapat dinyatakan bahwa media pembelajara E-book interaktif ” valid, praktis dan efektif digunakan sebagai media pembelajaran peserta didik.

10.47435/jtmt.v4i02.1841 Description Of Students' Critical Thinking Skills In Solving Relation And Function Problems

2023-12-21T16:59:36+00:00

This research aims to describe the level of students' problem solving abilities in relation and function questions. Using a qualitative approach, data was obtained from tests and interviews. The test instrument measures critical thinking abilities. Three subjects were selected with different levels of ability: high, medium, and low. The research results show that the critical thinking ability of high ability subjects includes all indicators of critical thinking including interpretation, analysis, evaluation and inference; the medium ability subject includes 3 indicators of critical thinking ability including interpretation, analysis and inference; and for low ability subjects only on interpretation indicators.

10.47435/jtmt.v4i02.2043 Application of ADDIE Learning Model Assisted by Desmos Application to Improve Ability to Understand Mathematical Concepts

2023-12-21T16:59:17+00:00

This study aims to improve students' understanding of mathematical concepts using the application of the ADDIE learning model assisted by the desmos application. This research is a Classroom Action Research. The research subjects consisted of 36 students of class X-D SMAN 83 Jakarta. Data collection techniques used description test instruments, observation sheets, and documentation. Data analysis used quantitative and qualitative descriptive analysis. Researchers conducted initial observations (pre-cycle) and two learning cycles. An observer assessed the activities of educators and students in each cycle. The results stated that students experienced an increase in the ability to understand mathematical concepts seen from the pre-cycle percentage of 13.89%, cycle I of 66.67%, cycle II of 83.33% and reached the KKM score ≥78 and in accordance with the research target of 80%. This is supported by the activities of students and the activities of educators who also experienced an increase in each cycle in the good category. So it can be said that using the application of the ADDIE learning model assisted by the desmos application can improve the ability of students' understanding of mathematical concepts in trigonometry material.

10.47435/jtmt.v4i02.1975 Analysis Of Student Errors On Algebraic Form Material Based On Kastolan

2024-01-07T17:07:52+00:00

Algebraic calculation operations are basic material that is the basis for studying other mathematical material, but there are still many students who still make mistakes in solving algebraic calculation operation questions. Therefore, it is necessary to analyze the errors made by students in working on algebraic calculation operations questions. This research aims to describe the errors made by students when completing algebraic operations according to Kastolan theory in solving algebraic arithmetic operation problems. This type of research is qualitative descriptive research. The data collection technique used was a test. The data analysis techniques used were: examining the results of students' answers by identifying and analyzing the types of errors made by students in answering questions related to the Kastolan error type; 1) Calculate the percentage of error for each type of error, 2) The results of the percentage level are classified based on the percentage of error, 3) The data that has been obtained is then calculated and will be carried out using descriptive analysis, 4) Make conclusions from the results of the analysis of students' errors in working on form operation questions algebra based on the Kastolan error type. Based on the research data and discussions obtained, 69% of conceptual errors were in the high category, 58% of procedural errors were in the sufficient category, and 59% of technical errors were in the sufficient category. It can be concluded that the mistakes that many students make when working on test questions are conceptual errors, namely errors in understanding the questions. Factors that cause students to make mistakes are not understanding the concept and not being able to apply the concept

10.47435/jtmt.v4i02.1987 Error Analysis of Class XI Students of SMA in Solving Matrix Problems in terms of Mathematical Ability

2024-01-07T17:07:32+00:00

This research aims to describe the types of errors made by students in solving matrix problems. The subjects in this research were three students of class XI MIPA SMA 5 Palu who were divided into three categories based on their level of mathematical ability, namely students with high, medium, and low mathematics ability. The selection of these three students was based on students report cards which were categorized into three types, namely high, medium and low, which were then selected through considerations, namely students who were able to take part in the entire of data collection activities carried out by researchers as well as considerations from mathematics subject at the school. This type of research is descriptive research with a qualitative approach. Data collection was carried out by administering written tests and interviews. The results of this research show that students of class XI MIPA SMA Negeri 5 Palu made mistakes in solving questions (1) high mathematics ability students made conceptual mistakes, namely students were wrong in writing the concept of matrix multiplication that had different orders. (2) students with moderate mathematics ability made procedural errors, namely students were wrong in carrying out the steps of solving the problem and students in solving the problem did not reach that students do not write the sign of mathematical operations that should be used. (3) students with low mathematics ability made conceptual errors, namely students did not solve the problems given, only rewrote the matrix members. Procedural errors, namely students are not careful in understanding the question instruction so that the steps for solving the problem are not appropriate and students do not solve the problem until the final stage. Technical errors, namely students are wrong in doing calculations so that the students answers do not match the alternative answers. This research is highly recommended for other researchers to explore further because the coverage of the matrix material is quite broad so researchers cannot discuss everything in this research and there are many more reviews that need to be analyzed through this material.

10.47435/jtmt.v4i02.1976 Analysis of the Error Students in Solving Story Problems on Quadratic Equation Material Based on Newman Stages

2024-01-06T17:08:53+00:00

This research is a qualitative research that aims to obtain descriptive errors of students of class IXC MTs Negeri 2 Palu in solving story problems on quadratic equation material based on Newman stages. Data were collected using test and interview methods. The research subjects consisted of 1 student who made more mistakes than other students, the mistakes varied, could communicate well and get recommendations from the mathematics teacher of class IXC MTs Negeri 2 Palu. The results showed that the errors of students in class IX C MTs Negeri 2 Palu in solving story problems of quadratic equation material based on Newman's stages were (1) reading errors, namely students could not mention the unit of volume, (2) reading comprehension errors, namely students miswrote the known information from the story problem of quadratic equation material where students wrote P = 5 cm which should be P = L.+ 5 cm, (3) transform error, namely students are unable or incorrect in changing the problem into mathematical form, (4) process skill errors committed by students, namely not knowing the steps or procedures to be used in solving the story problem, (5) final answer error (encoding error), namely students incorrectly write the final answer in accordance with the desired problem