Jajang Rahmatudin
Universitas Muhammadiyah Cirebon

Published : 12 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 12 Documents
Search

Sarah Lionti S. Pd Sarah Lionti; Jajang Rahmatudin; sumliyah sumliyah
Integral : Pendidikan Matematika Vol 12 No 1 (2021): INTEGRAL
Publisher : Program Studi Pendidikan Matematika, FKIP Universitas Muhammadiyah Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.082 KB) | DOI: 10.32534/jnr.v12i1.2110

Abstract

This study aims to determine how the development of mathematics learning videos for Cartesian coordinate material assisted by YouTube social media as an alternative learning for students of SMP Negeri 1 Tengah Tani. The resulting YouTube social media assisted mathematics learning video has been developed with the Borg & Gall (1983: 775) model modified by Sugiyono (2017: 409). This study produces a mathematics learning video of Cartesian coordinate material assisted by YouTube social media as an alternative learning with the results of the assessment of material experts with an average score of 3,60 results from the curriculum experts with a score of 3.60 results from media experts with a score of 4.00 and the results of teaching teacher with an average score of 3.70 thus producing learning media with criteria "very valid". Products that have been validated by experts are then tested on students by filling in a response questionnaire to determine the level of attractiveness of the learning videos that have been developed and get an average score of 3.58 with the criteria "very interesting". Keyword : Research & Development, Learning Videos, Cartesian coordinates.
PROFIL KEMAMPUAN BERPIKIR ALJABAR SISWA SMP PADA MATERI LUAS PERMUKAAN KUBUS Putri Parhati Meilani; Titi Rohaeti; Jajang Rahmatudin
Integral : Pendidikan Matematika Vol 13 No 1 (2022): INTEGRAL
Publisher : Program Studi Pendidikan Matematika, FKIP Universitas Muhammadiyah Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (313.209 KB) | DOI: 10.32534/jnr.v13i1.3109

Abstract

ABSTRACT The purpose of this study was to describe the algebraic thinking skills of junior high school students who were categorized as high and students' errors in solving algebraic problems on the surface area of ??a cube. This study uses a descriptive research method with a qualitative approach. The subjects of this study were three students from class VIII-3 of SMP Negeri 2 Pancalang who were categorized as high level. The instrument in this study is the researcher himself, using an algebraic thinking ability test to measure algebraic thinking skills and interviews to describe the results of the interview. The results of this study indicate that the algebraic thinking of students with high-level categories in solving mathematical problems with the surface area of ??a cube consists of generational, transformational, and global meta-levels. Students tend to do better in global and new generational meta-level activities than transformational activities. Keywords: Algebraic Thinking Ability, Cube Surface Area, Student Error. ABSTRAK Tujuan penelitian ini untuk mendeskripsikan kemampuan berpikir aljabar siswa SMP yang berkategori tinggi dan kesalahan siswa dalam menyelesaikan masalah aljabar pada materi luas permukaan bangun kubus. Penelitian ini menggunakan metode penelitian deskriptif dengan pendekatan kualitatif. Subjek dari penelitian ini adalah tiga siswa dari kelas VIII-3 SMP Negeri 2 Pancalang yang berkategori tingkat tinggi. Instrumen dalam penelitian ini yaitu peneliti itu sendiri, dengan menggunakan tes kemampuan berpikir aljabar untuk mengukur kemampuan berpikir aljabar dan wawancara untuk mendeskripsikan hasil wawancara. Hasil penelitian ini menunjukan berpikir aljabar siswa dengan kategori tingkat tinggi dalam memecahkan masalah matematika materi luas permukaan kubus terdiri atas generasional, transformasional dan level-meta global. Siswa cenderung lebih baik dalam aktivitas level-meta global dan generasional baru kemudian aktivitas transformasional. Kata Kunci : Kemampuan Berpikir Aljabar, Luas Permukaan Kubus, Kesalahan Siswa.