DEVELOPMENTOFE-BOOKSTEM-BASEDONHUMAN DIGESTIVE SYSTEM MATERIAL TO IMPROVE SCIENTIFIC LITERACY SKILL

The research was conducted on students’ low scientific literacy skills in Indonesia based on PISA, PUSMENDIK data and the lack of STEM-based teaching materials that measure students’ scientific literacy. Researcher develop teaching material in the form of interactive E-book that can be used on all devices with feasible, effective, and practical to improve scientific literacy skills on human digestive system material. The research method used is R&D with the ADDIE from Branch. Subjects in this study was students of classes VIII-1 and VIII-3 from SMP Swasta Bina Satria Medan. Samples was taken by purposive sampling. The instruments used are tests that experts and non-tests have validated. Test instruments was given to 60 students, and assessment was given to 4 experts (1 expert in media, learning design, material, and linguist), three students in one- to-one evaluation, 15 students’ in small group evaluation, 30 students in field test, 30 students’ in implementation, and two science teachers. The results showed that resulting validation from a media expert with x̄ = 98.3, a material expert with x̄ = 83.3, a learning design expert with x̄ = 95.3, and a linguist expert with x̄ = 85, then an E-book STEM-based was declared feasible and effective in assisting the learning process and improving scientific literacy skills, 90% of students scored ≥ KKM and the average N-Gain was 0.75 (high). In addition, the E-book STEM- based was stated very practical with x̄ = 88 and very effective with x̄ = 97 for teachers and students to use in learning.