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Abstract

This development research aims to develop student's worksheet matrix multiplication-based guided discovery in class X SMK valid, practical, and effective. The development of this student worksheets using the 4-D model of development that consists of four stages, but in the development of the student worksheet is only going to be done until the third stage only. The subject of trials on the research development of this student worksheets are grade X SMK Putra Indonesia Malang. Based on the results of the validation of worksheets students validated by the three validator experts and practitioners, the student worksheet developed meet the category is valid. Based on the results of observation of its student worksheet demonstrates that levels of student worksheet demonstrates reach the high category, so the student worksheet developed meet the practical category. Average rating based on mastery of the whole class learning materials namely 76, guided discovery that include categories and student response against the student worksheet include positive categories, so the student worksheet developed meet the category effectively. Thus the student worksheets multiplication matrix-based discovery of social interactions in class X generated already meet the category is valid, practical, and effective.

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