<![CDATA[The purpose of this development research is to develop math worksheets using the SPLDV Calc application and to find out how to improve students' creative thinking skills with a 4D development model that is modified into 3D. The stages of this research development consist of: define, design, and develop. The results of this product development are (1) fulfilling the validity criteria based on the final validation percentage of 87% for LKS and 89% for the SPLDV Calc application; (2) meet the effectiveness criteria based on the results of student learning completeness to achieve classical mastery with a percentage of 86%; (3) meeting the criteria for practicality with a student response questionnaire percentage of 85% giving a positive response. The developed worksheets can improve students' creative thinking skills, it is indicated that there is an increase in the pretest to posttest scores from the N-Gain test score of 0.73 with high interpretation, so that the student worksheets can be used by students in learning This shows that android-based worksheets make it easier to learn mathematics.]]>
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