<![CDATA[This study aims to find out the validity and practicality of Student 0 Worksheets (LKPD) Charged With High Order Thingking Skill (HOTS) In Class VIII Flat Side Room Building Materials. This type of research is a development research using addie development model (Analysis, Design, Development, Implementation, Evaluation). This research was conducted at SMP Negeri 9 Metro. The data collection instruments used were expert validation questionnaires to 9 validators and practicality test questionnaires to 10 students. The data obtained is then analyzed using validity analysis and product practicality analysis. The result of the development of this study is a Worksheet of Learners Charged With Higher Order Thinking Skills (HOTS) On Class VIII Flat Side Room Building Materials. This LKPD is equipped with HOTS-based questions. Validation results by material experts obtained a percentage of 85.09%, media experts obtained a percentage of 88.40% and linguists obtained a percentage of 86% and all three fall into the category of highly valid. Practicality assessment using student response questionnaires fall into the eligible category. The results of the assessment of the overall teaching materials can be concluded that the HOTS-charged LKPD on the building material of the grade viii flat side room is valid and practical and can be used in learningKeywords: polyhedron, HOTS, LKPD, developmentDOI: http://dx.doi.org/10.23960/mtk/v9i4.pp397-412]]>
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