This study aims to produce teaching materials in the form of CTL-based worksheets for class XI at Senior High School. The method used in this research is the method of development. The initial stage is an analysis of the teaching materials used by teachers at school. Before being tested on class XI students, the worksheets were validated by experts as well as physics teachers and students at Senior High School 1 Gunung Tuleh. After being validated, improvements were made according to the suggestions given. The average results of the validation of learning experts, physicists, and linguists were 0.77, 0.90, and 0.81 from all aspects. The practical value of teachers and students is 79.68 and 87.43 with the valid category. After testing the validity and practicality of the physics learning videos, the results of the effectiveness test of the learning videos were obtained to measure students' critical and creative thinking skills. The average N-gain values are 0.22 and 0.26. With the overall results obtained, it can be concluded that the contextual-based worksheets that have been developed are suitable for use in learning activities

This study was aim to produce a valid instrument that can measure the quality of the context-based video of the sound. Instruments that had been developed include: physics learning expert validation instrument, physicist validation instruments, linguist validation instruments, teacher practicality instruments, student practicality instruments, critical thinking skills instruments, creative thinking skills instruments, collaboration skills instruments, and communication skills instruments both oral and writing. This research uses the ADDIE development model which consists of five stages. Data analysis for validity refers to the Aiken’s V coefficient where the instrument is valid if it is validity coefficient ≥ 0.6. The validation coefficient given by the expert for each instrument is as follows: the learning physics instrument 0.90, the physicist validation instrument was 0.91, the linguist validation instrument was 0.77, the teacher practicality instrument was 0.97, the student practicality instrument was 0, 87, instruments of critical thinking skills of 0.91, instruments of creative thinking skills of 0.93, instruments of collaboration skills of 0.99, instruments of oral communication skills of 0.98, and instruments of written communication skills of 0.90. All of instruments are valid, so the instrument can be used to measure the quality of the instructional video of sound.

Latar belakang penelitian ini adalah rendahnya hasil belajar siswa kelas XI SMAN 1 Gunung Tuleh. Penelitian ini bertujuan untuk mendeskripsikan hasil belajar siswa sebagai hasil dari aplikasi strategi pembelajaran aktif tipe Giving Question and Getting Answer. Jenis penelitian ini adalah kuasi penelitian eksperimental dengan rancangan penelitian yang digunakan adalah desain kelompok kontrol acak. Teknik pengambilan sampel adalah sampling jenuh. Populasi dalam penelitian ini adalah siswa kelas XI SMAN 1 Gunung Tuleh terdiri dari dua kelas. Hasil pembelajaran menunjukkan nilai rata-rata kelas eksperimen XI IPA 1 75,70 dan kelas kontrol XI IPA 2 61,59. Kemudian hasil uji hipotesis dengan uji t diperoleh thitung = 3,27 > ttabel = 2,01 maka hipotesis dalam penelitian ini diterima. Kesimpulannya adalah pengaruh aplikasi strategi pembelajaran aktif tipe Memberi Pertanyaan dan Mendapatkan Jawaban terhadap hasil belajar fisika siswa kelas XI SMAN 1 Gunung Tuleh.Kata Kunci: Memberikan Pertanyaan dan Mendapatkan Jawaban, Pembelajaran Aktif