PENGEMBANGAN POCKET BOOK DIGITAL BERBASIS PEMECAHAN MASALAH PADA MATERI BANGUN RUANG SISI DATAR SISWA KELAS VIII SMP NEGERI 3 NATAR TAHUN PELAJARAN 2021/2022
Keywords:
pocket book, digital, problem solvingAbstract
“This research and development aims to develop learning media in the form of a digital Pocket Book based on problem solving on flat-sided building materials for class VIII SMP Negeri 3 Natar and determine the feasibility of the product in terms of validity, student responses, and effectiveness. This research and development procedure refers to the ADDIE development model with the stages carried out namely analysis, design, development, implementation and evaluation. Product validation is carried out by 6 expert lecturers in accordance with their fields. Then the product was tested on class VIII students of SMP Negeri 3 Natar. The validation results obtained an average value of 3.75 with a "valid" category in terms of material, an average value of 4.0 was obtained with a "valid" category in terms of media, and an average value of 3.75 was obtained with a "valid" category. in terms of language. The results of the student responses showed that the digital Pocket Book was in the "very interesting" category with an average value of 3.38. The percentage of students' learning completeness after using the digital Pocket Book is 81% with the "very good" category. From the results of the assessment that have been described, it can be concluded that the digital Pocket Book based on problem solving on the material of the flat side of the development product is valid, gets a very interesting response from students, and is effectively used in learning mathematics. Thus, a digital Pocket Book based on problem solving on flat-sided space is feasible and effective to be used as a learning medium in class VIII of SMP Negeri 3 Natar."
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