PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) INTERAKTIF KIMIA UNTUK PEMBELAJARAN STRUKTUR ATOM DI KELAS X SMA

Alfa Dina, Fakhili Gulo, Effendi Effendi

Abstract


Abstract: Development of Interactive Student worksheet (LKPD) For Learning Atomic Structure In Class X SMA. Development of LKPD interactive chemistry of atomic structure material has been done and tested in SMA Srijaya Negara Palembang. This research is done by the method of Development Research (research development). The development is done by using ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model and Tessmer formative evaluation. Kevalidan teaching materials were assessed by three experts: material experts, pedagogists, and media experts. Kevalidan material obtained average of 4.00 with valid category, pedagogical validity obtained by the average of 4.15 with valid categories, and the validity of the media obtained average of 3.78 with valid categories. The practicality of teaching materials is seen from the mean of questionnaires in the one to one and small group stages. The average score of practicality is 3.97 with the practical category. The effectiveness of this instructional material is evident from the test of learning outcomes conducted at the field test stage. Based on field test result obtained gain score equal to 0,67 with medium effectiveness category. This suggests that LKPD interactive chemistry has met the valid, practical, and effective criteria for use in atomic structure learning. Keywords: Development, LKPD interactive, validity, practicality, and effectiveness

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