PENGEMBANGAN MEDIA PEMBELAJARAN LKS BERBENTUK CROSSWORD PUZZLE PADA TEMA SISTEM PENCERNAAN UNTUK MENINGKATKAN BERPIKIR KRITIS SISWA
Abstract. Innovation in learning media is needed to improve critical thinking skills. The media used are learning media Student Worksheets (LKS) in the form of puzzles to improve students' skills. The research method used in this study is the research and development method (R and D) in it, including the use of descriptive models. The implementation of the R & D method is divided into three steps, namely preliminary study, development and testing. For the population is class VIII at SMPN 2 Kota Tangerang Selatan. The sample used for the trial was limited to class VIII and extensive trials in class VIII A as control class 1 and VIII B as experimental class 2 with Quasi Experimental Design in the form of Matching Pretest-Postest Control Group Design. The results of data processing using SPSS Version 23, Anatest v.24 and Mc. Office Excel 2007. Based on the results of data processing, it was concluded that the development of Learning Media Student Worksheets (LKS) in the form of puzzles can be used by teachers as a tool to improve students' critical thinking skills. Keywords: Student Worksheets (LKS), Puzzles, improve critical thinking skills