PENGEMBANGAN BAHAN AJAR DENGAN MENGGUNAKAN LKS (LEMBAR KERJA SISWA) PENDEKATAN JAS (JELAJAH ALAM SEKITAR) PADA MATERI SISTEM PEREDARAN DARAH KELAS VIII MTsN PARAK LAWAS PADANG

Abstrak

The purpose of this research was a development that refers to the four D models that has modified, they are define, design and develop. The part of define consist of the students needs analysis, and studens assigment. The part of design was a design of the learning material with approach of LKS dan JAS. The part of develop was the validity test by validator and practicality test and teh respond of biology’s teacher and 40 students in class VIII.1 at MTsN Parak Lawas. The data of this research showed the primary data that was be analyzed by descriptive analyze in the percentage. The result of the learning material was categorized as valid and the score was 86.35% by validator, it was categorized as practice with the score was 87.72% by the teachers and 82.52% by the students. The respons of learning material was categorized in good the score was 91.07% by teacher and 85.13% by students. It concludes that the learning material with approachment about JAS which the system material about the bloods sirculation that was developed as valid and practice, then it was getting a good respond by the teachers and students.

Keywords : Development, learning material, LKS, JAS, practice, valid