<![CDATA[One way that can be done in overcoming these students' learning difficulties is by making improvements related to the teaching materials presented. This is done so that students can understand the concept of linear programming that is not textual. Therefore, this research was developed to develop a design of teaching materials (didactic design) that is more relevant for students so that students' learning difficulties can be overcome. Abstract is different from summary. The research method used is qualitative research methods with design research using Didactical Design Research (DDR). The subjects in this study were 37 high school students in class X in one of the schools in Kabupaten Cirebon. This study has three important stages, namely, preparing ADP, metapedadidactic analysis, and retrospective analysis. The results obtained in this study are that the didactic design was developed with four didactic situations to solve students' difficulties in determining the optimum value of the problem using the test point method and the probing line method. Keywords: didactical design research; linear programming; student learning difficulties DOI: http://dx.doi.org/10.23960/mtk/v9i4.pp427-441]]>
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