Development LKPD Based on Problem Based Learning on Atomic Structure Material Phase E High School

Abstract

This development research has produced teaching materials in the form of LKPD LKPD Based on Problem Based Learning on Atomic Structure Material Phase E High School. The results of the development of teaching materials that have been designed are tested for validity and practicality to meet the requirements of an LKPD. This LKPD development research uses the R&D (Research and Development) method, namely research and development, with the 4-D model. This 4-D model has 4 stages, namely: (1) define, (2) design, (3) develop and (4) disseminate. This development stage is only carried out up to the develop stage. This study used instruments in the form of validation questionnaires consisting of content and construct validation questionnaires and practicality questionnaires. Validation was conducted by 5 validators, consisting of 3 chemistry lecturers from FMIPA UNP, and 2 chemistry teachers from SMAN 15 Padang. Practicality testing was conducted by 2 chemistry teachers of SMAN 15 Padang and Phase E students from SMAN 15 Padang. Testing of this LKPD will generate data that will be analyzed using Aiken's V formula. Based on the results of the analysis, it can be summarized that the resulting LKPD is a teaching material product that is categorized as valid based on the V value of 0.86. Practicality testing obtained data results in the form of NP values from teachers and students totaling 90% and 91%, which is categorized in the very practical category.