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The purpose of this research is (1) development of student worksheet based on ethmothematics traditional engklek game on cube and rectangular pyramid (2) to describe the quality of students worksheets based on ethnomatematics traditional engklek game on cube and rectangular pyramid from aspect of validity, practicality, and effectiviness. This research is a development research with a Plomp development model with four step namely: Preliminary investigation, Design, Realization, and Test, evaluations, and revisions. This research used five 8th  graders. The result of research: (1) based on valid criteria of student worksheets developed were declared result average score of 4,27 (very valid), (2) student worksheets by practical criteria with the average rating of the validator stating the student worksheets can be used with a little revision and obtained a percentange of learning management implementation 88,9% (1st meeting) and 85% (2nd meeting) with an average score of 3,44( good), besides that based on student activity result of activity is greater than passive ctivity (92,7% > 8,2%), so it can be concluded that student worksheets are very practical to use, (3) based on the learning achievement test obtained 80% classical completeness (good) with an average grade obtained 88, while the result of student questionnaire responses obtained a score of 98% (very positive), so it can be concluded that student worksheets developed effectively used.

Student Worksheet; Ethnomatematics; Traditional Engklek Game.