Mining activities that are not managed properly can have negative impacts on the environment. Schools in the mining area must get more environmental education than schools in general. This is in order to grow the sense of environmental awareness for junior high school students in the mining area to be able to preserve the environment. This study aimed to develop subject specific pedagogy in science subjects for junior high school students residing in the mine area. The research method used refers to the research development procedure. The research instrument used was a validation sheet to determine the feasibility of the product developed. subject specific pedagogy that have been developed for junior high school students include learning implementation plans, student worksheets, and environmental awareness character evaluation instruments. Based on the results of the validation of education experts, curriculum experts, material experts, and instructional media experts it was found that the - subjects specific pedagogy developed is feasible to use. Based on expert opinion that the product developed can build the character of environmental awareness.

Penelitian ini bertujuan untuk mengetahui keefektifan media pembelajaran berbasis multimedia dengan menggunakan powerpoint terhadap hasil belajar siswa sekolah dasar. Jenis penelitian ini adalah R&D D (Research and Development). Metode yang digunakan peneliti adalah model Barg and Gall (1potensi dan masalah, 2pengumpulan data, 3desain produk, 4validasi desain, 5revisi desain, 6uji coba produk, 7revisi produk, 8uji coba pemakaian, 9revisi produk, 10produksi massal). Penelitian ini khusus untuk melihat keefektifan media pembelajaran berbasis multimedia menggunakan powerpoint. Adapun hasil keefektifan media pembelajaran berbasis multimedia menggunakan powerpoint dari hasil N-Gain score diperoleh skor 0,74%. Sehingga sehingga dapat disimpulkan bahwa penggunaan media pembelajaran pembelajaran berbasis multimedia menggunakan powerpoint masuk katagori tinggi dan efektif untuk meningkatkan hasil belajar siswa sekolah dasar.

Sejatinya, Penelitian ini bertujuan untuk mengetahui cara mengembangkan bank soal berbasis Higher Order Thinking Skills/HOTS di Sekolah Dasar dan mengetahui bagaimana hasil dari pengembangan bank soal berbasis HOTS. Penelitian ini merupakan penelitian dan pengembangan (research and development). Metode yang digunakan dalam penelitian ini adalah dengan mengacu pada model pembelajaran 4D oleh Thiagarajan, Semmel dan Semmel yang terdiri dari 4 tahapan pengembangan, yaitu pendefinisian (define), perancangan (design), pengembangan (develop), dan penyebaran (disseminate). Lembar validasi butir soal digunakan untuk mengetahui kevalidan produk. Berdasarkan hasil analisis kuantitatif butir soal HOTS menunjukkan bahwa dari 100 butir soal diperoleh 90 Soal yang layak dimasukkan dalam bank soal dengan pemerolehan data hasil validasi dari tim ahli sebesar 0,75 ( kriteria tinggi), reliabilitas sebesar 0,90 (kriteria sangat tinggi), rerata daya beda masing-masing sebesar 0, 6 (kriteria baik), serta rerata tingkat kesukaran 0,4 (kriteria sedang). Sehingga, dapat disimpulkan bahwa terdapat 90 butir soal yang layak dimasukkan dalam bank soal yang dibagi menjadi tiga paket, masing-masing paket berjumlah 30 butir soal.

The purpose of this study was to develop a formaldehyde test practicum instructions using natural indicators for the first high school students. This research method refers to the development procedure developed by Borg and Galls. The trial of 104 leaf and flower crown samples which were estimated to have potential as a natural indicator for formalin testing was carried out. Only 3 natural indicators can be used for drops and filter paper, namely flower: ribosa ruellia, hibiscus rosa-sinensis L and balsamina Impatiens L purpel. Based on the results of the expert assessment and the teacher showed that the practicum instructions were suitable for use by junior high school students to test formalin.

Dare to take risks is an individual's attitude in deciding the direction of action and behavior. Generally, a risk-taking attitude is developed through entrepreneurial activities that encourage someone to become courageous in making decisions. This research is important because the science worksheets that are integrated with entrepreneurship have not been developed properly by experts. Teachers need worksheets that are effective and contextual. This study aims to examine the effectiveness of the entrepreneurship-integrated science worksheet on students' risk-taking courage. The entrepreneurial-integrated science student worksheet used in this study was developed in previous studies, consisting of four stages: problem analysis, product creation, product SWOT identification, and product marketing plans. A quasi-experimental pretest-posttest non-equivalent control group design was used in this study. The number of samples was 140 students of junior high school in grade VII divided into the experimental and control groups. Data analysis was carried out through a t-test at a significance level of 0.05. Based on the post-test, the students' courage to take a stand showed that the average value of the experimental class was higher than the control class. The results of the t-test obtained a p-value 0.000 < 0.05. The research results indicate that the science worksheets containing entrepreneurial values develop risk-taking attitudes effectively for junior high school students. The Students Activity Sheet needs to be applied by science teachers for junior high school to have a mature and tough attitude in deciding and problem-solving in everyday life.