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Journal of Didactic Mathematics
Published by Mahesa Research Center
ISSN : -     EISSN : 27215601     DOI : 10.34007/jdm.v1i1
Core Subject : Education,
Education Mathematics
Journal of Didactic Mathematics is published three times a year, in April, August and December. This journal is providing a platform that welcomes and acknowledges high quality empirical original research papers about mathematics education, mathematical didactic, mathematics learning, and school mathematics written by researchers, academicians, professionals, and practitioners.
Arjuna Subject : Matematika - Analisis
Articles 7 Documents
 1 
Search results for , issue "Vol 2, No 1 (2021): April" : 7 Documents clear
Pengaruh pembelajaran think-talk-write terhadap kemampuan komunikasi matematik dan sikap positif siswa terhadap matematika Habeahan, Winmery Lasma; Sitio, Hetdy; Wahyuni, Fitry
Journal of Didactic Mathematics Vol 2, No 1 (2021): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v2i1.619

Abstract

The purpose of this study was to determine whether the mathematical communication skills and attitudes of students who were taught with the Think-Talk-Write (TTW) strategy were better than conventional learning. This research is a quasi-experimental research which compares two learning models, namely the TTW cooperative learning model and the conventional learning model. This research was conducted on students of class VII SMPS Mentari Bangsa Medan, which consisted of 2 classes. This study involved two variables, namely the independent variable and the dependent variable. The independent variable is the TTW and KAM learning strategy, while the dependent variable is the mathematical communication skills and attitudes of students towards learning. The sample consist of 42 students for TTW strategy and 37 students for conventional learning. The conclusion is that students who get learning with the TTW strategy have significantly better mathematical communication skills than students who get conventional learning (tcount = 4,93 more than ttable =1,66) and the attitudes of students who get learning with the TTW strategy are significantly better than students who get conventional learning (tcount = 3,14 more than ttable = 1,66).
Analisis kesalahan siswa kelas X agribisnis tanaman perkebunan SMK Negeri 1 Batang Gansal dalam menyelesaikan soal matriks Ramadhani, Fitri; Saraswati, Mellyani
Journal of Didactic Mathematics Vol 2, No 1 (2021): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v2i1.580

Abstract

SMK N 1 Batang Gansal’s students have difficulty learning the matrix material. This can be seen from the result of students who get test scores below score 60. Especially in class x agribusiness plantations 1 with the percentage of daily test scores below score 60, which is 82.6%. Therefore, an analysis is needed to determine the types of errors that students tend to make in solving matrix problems. In this study, data collection was carried out using test and questionnaire methods, with data analysis using descriptive statistics. Based on the data analysis, it was concluded that the mistakes made by students in solving matrix problems were concept errors, principal errors and operational errors, with a tendency for errors in conceptual errors. The causes of errors are not understanding the concepts of matrix material, not listening when the teacher explains the material, not having complete notes or a summary of the matrix material, and not studying the matrix material at home, and not practicing working on various matrix questions so that they are unable to use formulas. matrix well.
Peningkatan kemampuan pemecahan masalah matematis siswa melalui penerapan model pembelajaran missouri mathematic project Harianda, Boni; Junedi, Beni
Journal of Didactic Mathematics Vol 2, No 1 (2021): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v2i1.616

Abstract

Problem solving is a basic skill that should be possessed by students. Mathematical problem solving abilities play a role in solving every problem both other subjects and problems in everyday life. Through mathematical problem solving activities students are directed to build mathematical knowledge, think logically, systematically and measurably. The fact is that students' mathematical problem solving abilities are still low. The learning process that focuses on exercises that provide opportunities for students to develop mathematical problem solving skills to become a model for improvement in the learning process. The Missouri Mathematical Project learning model is an appropriate learning model to facilitate students in developing their thinking in solving mathematical problem solving problems. For this reason, this study aims to improve students' mathematical problem solving abilities through the application of the Missouri mathematical learning model. This type of research is a classroom action research (PTK). The research subjects were grade V students of MIS Al Firdausy Pematang Reba. The data collection technique used was a mathematical problem-solving ability test. The data analysis technique used is quantitative data analysis. Based on the results of the test of mathematical problem solving abilities, there was an increase in each cycle starting from the initial pre-action test, cycle I and cycle II. It can be concluded that there is an increase in students' mathematical problem solving abilities through the application of the Missouri mathematical learning model.
Analisis kesulitan kemampuan komunikasi matematika mahasiswa menggunakan aplikasi google classroom pada matakuliah aljabar Fitriani, Fitriani; Siregar, Yulia Anita; Novitasari, Wiwik
Journal of Didactic Mathematics Vol 2, No 1 (2021): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v2i1.596

Abstract

Mathematical communication skills are one of the abilities that students must have to make it easier to solve problems contained in mathematics itself and in everyday life. Because if students have mastered mathematical communication skills, it will make it easier for students to take deeper learning. This study aims to analyze the difficulty of students' mathematical communication skills using the Google Classroom Application in the Algebra course. This type of research is descriptive qualitative. The subjects of this study were tree semester students who took Algebra courses in the Mathematics Education study program at Universitas Muhammadiyah Tapanuli Selatan, academic year 2020/2021 as many as 15 people. The instrument used in this study was Test and interview. The results showed that based on the test results obtained: difficulties in the ability to interpret mathematical ideas rationally in writing, difficulties in mathematical problems into mathematical models and difficulties in the ability to express mathematical ideas in the form of descriptions. Meanwhile, based on the results of the interview, namely: (1) technical difficulties, and (2) student adaptation difficulties. To overcome these difficulties, it is necessary which is a combination of Online and Offline learning or also called blended learning.
Kemampuan abstraksi reflektif matematis siswa pada materi bangun ruang Sutrisna, Nia; Pramuditya, Surya Amami; Raharjo, Jajo Firman; Setiyani, Setiyani
Journal of Didactic Mathematics Vol 2, No 1 (2021): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v2i1.598

Abstract

This study aims to determine the ability of reflective mathematical abstraction which consists of the ability to apply concepts, the ability to make relationships between concepts to form new meanings, and the ability to manipulate abstract mathematical objects. This research is a qualitative research with type of case study. The sample used in this study was one senior high school student of class X. The method of collecting data to find the results of the study was to use a test instrument for building questions and interviews. These instruments are validated first using Expert Judgment Validation. The results obtained by indicator one and indicator two, student still find it difficult to understand the concept and choose which other concept is suitable to obtain a solution. Meanwhile, on the third indicator student can manipulate abstract mathematical objects. So that the student' mathematical abstraction ability is still quite good.
Analisis kualitas pembelajaran matematika pada penggunaan platform google classroom materi kombinatorika Mustika, Helma; Nadela, Junita
Journal of Didactic Mathematics Vol 2, No 1 (2021): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v2i1.579

Abstract

Using the background of the problem is this research is the lack of knowledge of theachers and students about how use the application Google Classroom (GC) in learning activities, but there are still students do not have google account to log in the application GC. This research is a descriptive qualiative research. This study aims to determine how the quality of mathematics learning in the use of the application GC of combinatorics material for class XII IPA students of SMA Negeri 1 Pasir Penyu. The subjects of this study were selected based on the student’s daily test scores on combinatoric material using the application GC, where the subjects of this study included six students of class XII IPA 3 consisting of two students who had high test scores, two students who had mean test scores and two students who had low test scores. Data collection techniques are interview guidelines and questinnaire sheets. Furthermore, the data obtained will be analyzed based on indicators of the quality of mathematics learning. Data analyzed techniques in this study were data reduction, data presentation, and data verification. Based on the final results of the questionnaire sheets scores and the average posttest so that the average of both is 71,5 whit good categories, it can be concluded that the quality of mathematics learning in the use of the application GC of combinatorics material for class XII IPA 3 students of SMA Negeri 1 Pasir Penyu is good.
Meningkatkan resiliensi matematis mahasiswa pada mata kuliah matematika dasar melalui pendekatan differentiated instruction Fatimah, Ade Evi; Purba, Azrina
Journal of Didactic Mathematics Vol 2, No 1 (2021): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v2i1.617

Abstract

This study is a Classroom Action Research with a qualitative descriptive method, which aims to increase students' mathematical resilience when using the Different Instruction approach. The subjects of this study were 40 first-semester students of class B of Informatics Engineering and Computer Education STKIP Al Maksum Langkat. The object of this research is the students' mathematical resilience ability through the Different Instruction approach in the basic mathematics subject matter of functions. This research procedure refers to four stages, namely planning, acting, observing, and reflecting. This research was conducted in two cycles, the research was based on the criteria that reached 85% for students who produced a minimum result of 65%. The instrument used in this study was a non-test question in the form of a mathematical resilience scale given at the beginning and end of the lesson. Based on the results of the study, it can be ignored that the Instruction Differentiation approach can improve the mathematical resilience of the first semester B grade students of the PTIK study program, by grouping students based on learning styles more effective in increasing students' mathematical resilience in applying the Instruction Differentiation approach.

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