This study aims to develop the learning of mathematics 1st junior class VII, on Numbers and Set. The learning tools developed consists of a syllabus, Lesson Plan (RPP), Sheet Teaching Materials (LMA), Student Activity Sheet (LAS), instructional media, and Authentic Assessment Sheet (LPA). This study is the research, development model 4-D which consists of four stages: Define, Design, Develop, and Disseminate. In this study the development process undertaken only to phase 3. The learning tools that have been developed, validated by two-person of experts and two practitioners then conducted a limited trial to the junior high school students in coastal areas. Data validation and students' responses collected through questionnaires which are then revised on the advice. From the results of the validation data showed the average score was 3.93 for syllabus (very valid), RPP was 3.44 (very valid), LAS was 3,67 (very valid), LMA was 3.83 (very valid), LMP was 3.92 (very valid),  and the average score of the students' response was 3.76 (very practical). From the development of learning tools that have been carried out it is concluded that a learning tool developed very valid and ready to be tested on students of SMP / MTs by a larger amount.

Penelitian ini bertujuan untuk menghasilkan media pembelajaran interaktif menggunakan powerpoint-geogebra materi bangun ruang sisi datar yang valid dan praktis. Model penelitian yang digunakan dalam penelitian ini yaitu model ADDIE. Model pengembangan ADDIE terdiri dari lima tahap yaitu Analyze, Design, Development, Implement, dan Evaluation. Teknik pengumpulan data pada penelitian ini menggunakan lembar validasi dan angket respon peserta didik. Validitas produk dinilai berdasarkan hasil validasi ahli materi dan ahli media. Praktikalitas produk dinilai berdasarkan hasil uji coba kelompok kecil pada 6 peserta didik kelas VIII SMP Negeri 1 Reteh Pulau Kijang. Instrumen yang digunakan dalam penelitian ini adalah lembar validasi ahli media dan ahli materi serta angket respon peserta didik. Metode yang digunakan dalam pengumpulan data adalah dengan melakukan observasi dan wawancara. Teknik analisis data pada penelitian ini terdiri dari analisis lembar validasi oleh ahli dan audience (peserta didik). Hasil penelitian menunjukkan bahwa uji kevalidan oleh ahli materi dan ahli media dalam kategori sangat valid yaitu . Hasil uji kepraktisan dalam kategori sangat praktis dengan presentase total setiap aspek .

This study was aimed at describing the management of reformatory of At-Taqwa Muhammadiyah on building the students' personality MTs Muhammadiyah Padang Luar. The study was qualitative case study by applying interview, documentation and observation as instruments. The data were analyzed by using triangulation method. The results revealed that the buliding of students' personality was done by internalizing the moral value both god's interaction and human's interaction such praying; memorizing quran, and social intercourse. The management of reformatory of At-Taqwa Muhammadiyah was done by planning the program; organizing the program; implementing the program and controlling the program

This research aims to improve the learning process and increase mathematics learning outcomes by implementing the Problem Based Learning model of the students in class VIII.6 MTs Negeri 1 Pekanbaru. Subject of this research are students of class VIII.6 MTs Negeri 1 Pekanbaru in odd semester of academic year 2019/2020 which consist of 31 students. This form of research is a classroom action with two cycles. Data collection using observation sheets and learning outcome test. The result of the research showed that the learning process has improved from cycle 1 to cycle 2, seen from the achievements of mathematics learning outcomes of students in aspects oof knowledge and skills. The data obtained from the student’s achievement test shows that the percentage of students who reached the Minimum Mastery Criteria (MMC) aspek of knowledge has increased is 16,12% and 29,03% on aspek of skill. The conclusion of this research is implementation of the Problem Based Learning model can improve mathematics learning outcomes of students.

Penelitian ini didasarkan pada kebutuhan mahasiswa akan bahan ajar untuk perkuliahan persamaan diferensial. Penelitian ini mengembangan bahan ajar berupa lembar aktivitas mahasiswa (LAM) berbasis discovery learning untuk topik persamaan diferensial ordo satu. Model pengembangan yang digunakan adalah 4D. Subjek dalam penelitian adalah 40 orang mahasiswa program studi Pendidikan Matematika FKIP Universitas Riau. Instumen berupa angket, lembar observasi dan wawancara. Data yang diperoleh dideskripsikan secara kualitatif dan kuantitatif. Analisi data menyimpulkan bahwa LAM berbasis discovery learning ini valid, praktis dan efektif. LAM ini dapat menjadi penunjang pembelajaran persamaan diferensial ordo satu.