The purpose of this study was to produce valid and practical Know, Want, Learn (KWL) based Student Worksheets. The type of research implemented through this activity is Research and Development (R&D) using the 4D model (define, design, develop, and disseminate). This product was validated by 2 Biology lecturers at IAIN Batusangkar and a Biology teacher. For the practicality test given to students of class XI IPA SMA N 1 Payakumbuh Regency. The instruments in this study were validation sheets and practicality sheets. The results of this study stated that the Know, Want, Learn (KWL)-based Student Worksheets were very valid with an average percentage of 84%. This product is also very practical according to the teacher with a percentage of 89%, and according to students it is also very practical to use in learning with a percentage of 84%.
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