PENGEMBANGAN LKPD MATEMATIKA MATERI KELILING DAN LUAS BANGUN DATAR MENGGUNAKAN KALKULATOR DI KELAS IV SEKOLAH DASAR

Abstract

This research aims to develop and know the quality of student worksheets mathematics produced on the round and wide range materials using calculator. It uses Research and Development (R&D) method of development that is used to produce certain products, which are students ' worksheets mathematics and wide-wake material. The model used in this research is the development model adopted by Sugiyono consisting of 10 stages, namely potential and problems, data collection, product design, design validation, design revision, product testing, product revision, usage testing, product revision, and mass production. This development research involves three expert validators and the user's goal of the product is a class IV student of elementary School. The instruments used in the research are observations, polls and tests. Based on expert assessment gained that the quality of the student worksheets Mathematics received a very valid criterion with a percentage of 92%. Based on the test results there is an increase in the number of students ' submission from the pretests of 6% to 100% in posttest. Therefore, the student worksheets mathematics on the round and wide range materials using a calculator in grade IV elementary school is said to be viable and able to facilitate the ability of understanding the concepts and skills of using the calculator.