<![CDATA[This research is motivated by the persistent misconceptions found in students, particularly on the material of states of matter and their changes at the elementary school level, which have the potential to hinder accurate conceptual understanding. This research aims to develop and determine the validity level of the Word Search Worksheet Reconstruction Sheet to reduce misconceptions among fourth-grade elementary school students. The method used in this research is Research and Development (R&D) by referring to the Four-D (4D) development model which includes the define, design, development, and disseminate stages. The product validation process was carried out by two experts, namely a material expert and an evaluation expert, by considering aspects of content, language, and presentation feasibility. The validation results show that the word search worksheet reconstruction sheet obtained a validity level of 100% from the material expert and 95% from the evaluation expert with a very valid category. Therefore, the developed product is declared suitable for use as supporting teaching materials in science learning and has the potential to help reduce students' misconceptions on the material of states of matter and their changes.]]>
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