Pengembangan Bahan Ajar Dalam Bentuk Buku Saku Pada Pokok Bahasan Struktur At…

This development research aims to produce a pocket book on the subject of atomic structure and the periodic system of elements. The method used is the Research and Development (R&D) method with the ADDIE development model. Broadly speaking, the stages of research and development include Analysis (analysis stage), Design (design stage), Development (development stage), Implementation (imple…