The purpose of this study is to develop learning materials based on realistic mathematics education approach that are valid, practical and effective to improve problem solving skills and learning independence of class VII students. This research is a development research that uses a design model for materials development according to Thiagarajan, et al. namely 4-D. This trial was carried out in classes VII-3 and VII-4 Padangsidimpuan 5 Middle School. From the results of the study, it was found that developed devices were valid with an average total validity of RPP = 4.46, student books = 4.41, teacher's books = 4.38, LAS = 4.31; then a practical device can be implemented, with an average of 85% and 91.25%. and effective devices, in terms of a) classical learning completeness of students in 62% I test increased in trial II has reached 92%; and b) student responses to the components of positive learning. Based on the results of the study it was suggested that mathematics teachers can facilitate mathematical learning using quality learning materials and especially by using learning based realistic mathematics education approach.
This study aims to analyze the effectiveness of learning materials based on realistic mathematics education approach, as well as improving mathematical problem solving ability and student selfefficacy. Learning materials that developed were lesson plan, student book, student worksheet, mathematical problem solving ability test and self-efficacy questionnaire. This research is a development research by using the development model of Thiagarajan et al. (1974). Learning materials that have met valid criteria according to experts, were tested in class VII of SMP Negeri 17 Medan. The results showed that learning materials based on realistic mathematics education approach met the effective criteria and can improved mathematical problem solving ability and student self-efficacy. Based on the results of the study, it was suggested that mathematics teachers make an effort mathematical learning using learning materials based on realistic mathematics education approach.
The objectives of this study are to: (1) Analyze whether there is a contribution of mathematics anxiety, learning motivation and self-confidence to the ability to solve mathematical problems simultaneously, (2) Analyze whether there is a contribution of mathematics anxiety, learning motivation and self-confidence to the partial mathematical problem solving ability, (3) To analyze how big the contribution of mathematics anxiety, learning motivation and self-confidence to mathematical problem solving abilities simultaneously, (4) Analyze how much the contribution of mathematics anxiety, learning motivation and self-confidence to the partial mathematical problem solving abilit, (2) math anxiety questionnaire, (3) learning motivation questionnaire, (4) self-confidence questionnaire. Data analysis was performed by multiple linear regression analysis. The results showed: (1) There is a contribution to mathematics anxiety, learning motivation, and self-confidence to the ability to solve mathematical problems simultaneously, (2) There is a contribution to mathematics anxiety, learning motivation, and self-confidence to the ability to solve mathematical problems partially, (3) Mathematical anxiety, learning motivation and self-confidence contributed 26% to the ability to solve mathematical problems simultaneously, (4) Mathematical anxiety contributed 8.5% to mathematical problem solving abilities, learning motivation contributed 15.8% to mathematical problem solving abilities and self-confidence contributed 16.7% to mathematical problem solving abilities.
This study aims to analyze: the level of students' metacognition in mathematical problem-solving skills. The subjects of this study were students of grade X at Private Madrasah Aliyah Al-Asy'ariyah Medan Krio. The objects of this research were students' metacognition level and mathematical problem-solving skills. The results showed that: the level of students' metacognition in mathematical problem-solving skills of 32 students were: (1) Students with high levels of problem-solving skills were at the level of metacognitive strategy use; (2) Students with the medium level of problem-solving skills were at the level of metacognitive aware use; (3) Students with low levels of problem-solving skills were at the level of metacognitive tacit use.
Pembelajaran Daring (dalam jaringan) merupakan belajar secara online melalui media-media yang ditentukan. Penelitian ini bertujuan Untuk : 1) mendeskripsikan bagaimana tingkat Validitas , kepraktisan dan efektifitas perangkat pembelajaran berbasis penemuan terbimbing menggunakan Hypercontent untuk meningkatkan kemampuan berpikir matematis kritis di SMAN 1 Tambangan; 2) mendeskripsikan Peningkatan kemampuan berpikir kritis matematis siswa dengan menggunakan perangkat pembelajaran berbasis penemuan terbimbing menggunakan Hypercontent di SMAN 1 Tambangan. Penelitian ini menggunakan model pengembangan 4-D oleh Sivasailam Thiagarajan, Dorothy S. Semmel, dan Melvyn I. Semmel (1974). Model ini terdiri dari 4 tahap pengembangan yaitu Define (Pendefinisian), Design (Perancangan), Develop (Pengembangan) dan Disseminate (Penyebaran). Subjek dalam penelitian ini adalah siswa kelas XI SMAN 1 Tambangan tahun Ajaran 2021/2022. Hasil penelitian menunjukkan bahwa 1) Perangkat pembelajaran berbasis penemuan terbimbing menggunakan hypercontent untuk meningkatkan kemampuan berpikir kritis matematis siswa yang dikembangkan sudah memenuhi kriteria valid, praktis dan efektif; 2) Peningkatan kemampuan berpikir kritis matematis menggunakan perangkat pembelajaran berbasis penemuan terbimbing menggunakan hypercontent yang telah dikembangkan dilihat dari nilai N-gain pada uji coba I sebesar 0,33 meningkat menjadi 0,4 pada uji coba II, artinya berada dalam kategori “sedang”.
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