DEVELOPMENT OF STUDENT WORK SHEETS TO TRAINREASONING AND PROOF MATHEMATIC ABILITIESON LINE AND ROW MATERIALS

Abstract

The mathematical ability of reasoning and proof is crucial today, especially at the secondary education level, because it is one of the supports in today's technology. The purpose of this research is to produce a product in the form of student worksheets and to find out the quality of worksheets to practice mathematical reasoning and proof skills in the sequence and series material. The development model used by researchers is ADDIE (Analyze, Design, Development, Implementation, and Evaluation), but in making these student worksheets the researcher only reaches the development stage or product development, knowing the level of validity and practicality of student worksheets as research products with using a questionnaire to see the validity of the product filled out by a team of experts, namely material experts and product experts. Meanwhile, in measuring the level of practicality, researchers saw student responses via google form. Based on the research results, with interviews as the Analyze stage, to design the product as the design stage and the development stage by developing student worksheet products. On the quality of student worksheet products, this resulted from a team of material experts 78.75% (lecturers); 76.25% (teachers), 73.33% product experts (lecturers); 70% (teachers) and 71, 61% of the mean score of 31 students. seen from the data interpretation, it can be concluded that the product is valid and practical.