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All Journal Kreano, Jurnal Matematika Kreatif-Inovatif Prosiding Universitas PGRI Palembang Jurnal Riset Pendidikan Matematika Jurnal Terapan Abdimas Al-Jabar : Jurnal Pendidikan Matematika Pendas : Jurnah Ilmiah Pendidikan Dasar JTAM (Jurnal Teori dan Aplikasi Matematika) PROSIDING SEMINAR NASIONAL PROGRAM PASCASARJANA Indiktika : Jurnal Inovasi Pendidikan Matematika Jurnal Cendekia : Jurnal Pendidikan Matematika Nabla Dewantara : Jurnal Pendidikan Matematika Plusminus: Jurnal Pendidikan Matematika SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA Indonesian Research Journal on Education International Journal of Trends in Mathematics Education Research (IJTMER) Jurnal Pendidik Indonesia Nabla Dewantara : Jurnal Pendidikan Matematika
Dina Octaria
Universitas Sumatera Utara
Religion Arts Humanities Chemistry Decision Sciences, Operations Research & Management Education Energy Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Selecta Capita of Mathematics E-Book for SHS on Contextual Teaching and Learning (CTL) Approach Octaria, Dina; Kesumawati, Nila; Retta, Allen Marga
Kreano, Jurnal Matematika Kreatif-Inovatif Vol 13, No 1 (2022): Kreano, Jurnal Matematika Kreatif-Inovatif
Publisher : Mathematics Dept, Math. and Science Faculty, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kreano.v13i1.31654

Abstract

Selecta capita of mathematics is a subject that discusses algebra, geometry, and high school calculus material. Students face obstacles during the learning process: misconceptions about studying selecta capita of mathematics and the lack of electronic textbooks. Therefore, it is necessary to have electronic textbooks that can help students to solve problems by prioritizing independence in the learning process. This study aims to produce a selecta capita of mathematics e-books for SHS on a reasonable and practical contextual teaching and learning (CTL) approach and to see the effectiveness of the e-book that has been developed. The development of selecta capita of mathematics e-book for SHS on CTL approach refers to ADDIE development model. The instruments used to determine the quality of a developed e-book are (1) questionnaires to measure the validity, (2) student response questionnaires to measure practicality, and (3) learning outcomes test questions. The results showed that selecta capita of mathematics e-books for SHS based on the CTL approach developed was good quality and could be used in learning.Kapita selekta matematika merupakan mata kuliah yang membahas materi aljabar, geometri dan kalkulus sekolah menengah atas. Salah satu kendala yang dihadapi peserta didik selama proses pembelajaran yaitu terdapat miskonsepsi dalam mempelajari kapita selekta matematika serta masih minimnya buku ajar elektronik. Oleh karena itu, diperlukan adanya bahan ajar elektronik yang dapat membantu peserta didik memecahkan permasalahan dengan mengutamakan kemandirian dalam proses pembelajaran. Penelitian ini bertujuan untuk menghasilkan e-book kapita selekta matematika SMA berbasis pendekatan contextual teaching and learning (CTL) yang valid dan praktis, serta melihat keefektifan e-book yang telah dikembangkan. Pengembangan e-book kapita selekta matematika SMA berbasis pendekatan CTL mengacu pada model pengembangan ADDIE. Instrumen yang digunakan untuk mengetahui kualitas e-book yang dikembangkan, yakni: (1) angket untuk mengukur kevalidan; (2) angket respon peserta didik untuk mengukur kepraktisan; (3) soal tes hasil belajar. Hasil penelitian menunjukkan e-book kapita selekta matematika SMA berbasis pendekatan CTL yang telah dikembangkan berkualitas baik dan dapat digunakan dalam pembelajaran.
Development of Higher Order Thinking Skills (HOTS) Test Instruments in Geometry Octaria, Dina; Ningsih, Yunika Lestaria; Destiniar, Destiniar; Fitriasari, Putri
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 6, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v6i4.8808

Abstract

Critical thinking, creativity, communication, and collaboration are all skills that students must have in the twenty-first century. A meaningful assessment, where the assessment can develop higher-order thinking skills, is one effort to realize the achievement of 21st-century skills. The goal of this research is to develop a HOTS test instrument relying on valid and reliable geometry for students. This study is a development study that employs the Akker development model. This study's data was gathered through questionnaires, documentation, interviews, and tests. The data were descriptively, qualitatively, and quantitatively analyzed. As a result of this research, the HOTS test instrument on the developed material is valid and reliable for students. The results of the expert's assessment of the content and language of the questions indicate the validity of the questions. The overall validity of the test instrument is 85.71 percent. A large-scale trial involving 110 students in grade 10 of senior high school yielded the empirical validity and reliability of the test items, with the test results indicating that 18 items were declared valid and reliable. As a result, the created Geometry test instrument can be used to assess students' HOTS abilities. 
Infographic Development through Instagram to Reduce Mathematics Anxiety and Increase Student Learning Outcomes Sari, Arika; Octaria, Dina; Utari, Rahma Siska; Somakim, Somakim; Hiltrimartin, Cecil; Hartono, Yusuf; Darmawijoyo, Darmawijoyo
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 7, No 2 (2023): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v7i2.12512

Abstract

Research is a descriptive research that aims to describe the product development process in the form of infographic learning media in algebra material through Instagram that is appropriate for students to use for independent learning activities. This research focuses on creating infographic media in algebra material through Instagram to reduce mathematics anxiety and improve learning outcomes. The method used in this research is development research using the Sadiman’s model. The stages in this development model are preliminary stage, prototyping stage, and final stage, which from three stages contain of nine steps, namely identification of needs, formulation of objectives, formulation of materials, formulation of success measurement tools, writing of media scripts, production, tests/trials, revisions and the final product. There were 34 students of seventh graders of junior high school participating in this study. Data was collected through interviews, observations, tests, and questionnaires. Data were analyzed quantitatively and qualitatively. The results of the validation test by experts show that 93% of infographics through Instagram as strengthening students' understanding are included in the valid category and are suitable for use in the learning process. In addition, as many as 88% of students experienced an increase in learning outcomes after learning to use infographics through Instagram which indicated that the level of student anxiety in learning mathematics had decreased.
Co-Authors Abdullah, Bz Septeiyawan Afni, Sanika Nur Allen Marga Retta, Allen Marga Ananda, Mardha Tilla Anggraini, Deti Anggriani, Wendy Bernessa, Berlin Inbay Cecil Hiltrimartin Darmawijoyo, Darmawijoyo Destiniar Destiniar Destiniar, Destiniar Dewi Rawani Dwi Nopriyanti, Tika Eka Fitri Puspa Sari, Eka Fitri Eka Fitri Puspa Sari, Eka Fitri Puspa Fuadiah, Nyiayu Fahriza Jumroh, Jumroh Kusumawati, Nyimas Inda Kusumawati, Nyimas Indah Lusiana Lusiana Masnunah, Masnunah Meisya Sari, Wayan Nila Kesumawati Ningsih, Yunika Lestaria Novitasari, Gensa Pirnando, Meilan Putri Fitriasari, Putri Rahma Siska Utari Ratu Ilma Indra Putri Sari, Arika Somakim, Somakim Suci, Della Tika Dwi Nopriyanti, Tika Dwi Widya Handayani Wiwi, Wiwi Nopianda Wulandari, Fadhilah Apri Wulandari, Iswayuni Yusuf Hartono Zulkardi Zulkardi