Dedi Muhtadi, Dedi
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IMPLEMENTASI PENDIDIKAN MATEMATIKA REALISTIK (PMR) UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KREATIF MATEMATIK DAN KEMANDIRIAN BELAJAR PESERTA DIDIK Muhtadi, Dedi; Sukirwan, Sukirwan
Mosharafa: Jurnal Pendidikan Matematika Vol 6, No 1 (2017)
Publisher : Institut Pendidikan Indonesia

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Abstract

Penelitian ini bertujuan untuk menggambarkan pencapaian dan peningkatan kemampuan berpikir kreatif matematik (KBKM) dan kemandirian belajar peserta didik melalui implementasi Pendekatan Matematika Realistik (PMR). Populasi penelitian ini adalah peserta didik SMP Negeri di Kota Tasikmalaya. Sampel penelitian adalah peserta didik kelas VIII yang mewakili satu sekolah level tinggi dan satu sekolah level sedang. Penelitian ini merupakan penelitian kuasi eksperimen dengan desain kelompok kontrol pretes-postes. Instrumen yang digunakan yaitu tes KBKM, skala kemandirian belajar peserta didik, dan lembar observasi. Analisis data menggunakan uji Kruskal Wallis. Dari hasil penelitian disimpulkan: 1) Pencapaian dan peningkatan KBKM kelompok PMR lebih baik dari kelompok PK; dan 2) Pencapaian dan peningkatan kemandirian belajar kelompok PMR lebih baik dari kelompok PK. The purposes of this study are to describe the enhancement and the achievement of students’ Mathematical Creative Thinking Skills (MCTS) and Self Regulated Learning (SRL) through implementation of Realistic Mathematics Education (RME) and Conventional Learning (CL). The population of this study were Junior High School students in Tasikmalaya City. The sample of this study were eighth grade students representing the high school level and the medium school level. This research is a quasi-experimental design with pretest-posttest control group. The instrument used is a test MCTS, scale independence of learners, and the observation sheet. Analysis of data using Kruskal Wallis test. The final conclusion: 1) Achievement and improvement of MCTS RME group is better than CL group; and 2) Achievement and improvement of Self Regulated Learning (SRL) RME group is better than CL group.
ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL TRIGONOMETRI TIPE HIGHER ORDER THINKING SKILL DITINJAU DARI GENDER Mulyani, Maya; Muhtadi, Dedi
Jurnal Penelitian dan Pembelajaran Matematika Vol 12, No 1 (2019): Jurnal Penelitian dan Pembelajaran Matematika Volume 12 Nomor 1 Februari 2019
Publisher : Universitas Sultan Ageng Tirtayasa

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Abstract

This study aims to describe errors, factors that cause students to make mistakes made by students with high capability, medium, low, and the presence or absence of gender influence in solving Trigonometry question HOTS (Higher Order Thinking Skill) type.. This type of research is descriptive qualitative. The subjects of this study are six people, namely three male students and three female students, consisting of two highly capable students, two moderate capable students, and two low capable students. Data collection techniques in this study used the test, interview, and documentation methods. The data analysis technique is done in three stages, namely reduction data, presentation data, verification data, and conclusion. The analytical framework was developed based on Newman’s error category. The results of the study obtained five error types, namely (1) reading errors, (2) comprehension errors, (3) transformation errors, (4) process skills errors, (5) encoding errors. The most mistakes made by students are misunderstanding, transformation errors, and writing answers. General factors that cause these errors appeared because of students' lack of capability in interpreting the questions, level of understanding and students’ creativity who are low in identifying real problems in mathematical models. Research shows there are differences in the error type made by male and female subjects in solving problems which include five types of Newman's error. Keywords: Newman’s error, Trigonometry, HOTS, Gender
Proses berpikir siswa dalam menyelesaikan masalah geometri berdasarkan teori Van Hiele ditinjau dari gender Mulyadi, Iyad; Muhtadi, Dedi
JP3M (Jurnal Penelitian Pendidikan dan Pengajaran Matematika) Vol 5, No 1 (2019)
Publisher : Program Studi Pendidikan Matematika, FKIP, Universitas Siliwangi, Tasikmalaya

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Abstract

This study aims to determine the thinking process of students in solving geometric problems based on Van Hiele's theory in terms of gender. The subjects in this study were 6th grade VII students in one of the public MTs in Pangandaran Regency, which consisted of 3 male and 3 female students, each of whom was capable of high, medium and low. The method used is qualitative research. Data collection techniques were carried out by test and interview methods. The results showed that in terms of gender high-ability male students are at level 2 (informal deduction), male students are capable of being at level 1 (analysis), while low-ability male students are at level 0 (visualization). The female students with high and moderate abilities are at level 1 (analysis), and low-ability female students are at level 0 (visualization). Keywords: Thinking process, geometry, van Hiele's theory, gender