VALIDITAS LEMBAR KERJA PESERTA DIDIK DENGAN BANTUAN POP UP BOOK SEBAGAI BAHAN AJAR BERBASIS KARAKTER PADA MATERI BANGUN RUANG SISI DATAR
Lack of teaching material varies and can bring up the character values of students in the learning process. For this reason, it is necessary to develop teaching materials that are able to bring up the value of these characters, one of which is to make teaching materials based on characters. The character values that will be raised in this study are curiosity, independence and accuracy. The purpose of this study was to produce teaching materials in the form of student worksheets with the help of character-based Pop Up Books.This type of research is Research and Development using the 4D research model (Define, Design, Develop, Disseminate). This research was only carried out up to level 3 ie only to the validation stage by experts without direct trials in the field. Data analysis techniques using quantitative and qualitative through questionnaires. The instruments used were peer assessment sheets and validation sheets by experts. The data obtained is qualitative data and then converted into quantitative data using method of summated ratings. The results of the validation of six validators showed that the teaching material developed was declared valid and worth testing in the field.