VALIDITAS PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERORIENTASI SELF REGULATED LEARNING PADA MATERI SISTEM PEREDARAN DARAH KELAS XI SMA
This study aims to develop a self-regulated learning-oriented student worksheet on the material of the blood circulation system for class XI high school students. This study uses the R&D (research and development) method with the 4-D development model (Four-D Models) developed by Thiagarajan et al. The development of learning media is carried out using four stages, namely: the definition stage, the design stage, the development stage and the dissemination stage. Research data obtained from Biology lecturers and teachers will be analyzed using descriptive analysis techniques. The results showed that the aspect of the media expert validation sheet was included in the "very valid" category with an average percentage of 94% and the material expert validation sheet aspect was included in the "very valid" category with an average percentage score of 92%. It means the student worksheets oriented towards self-regulated learning on the circulatory system material are valid for use in Biology learning activities in class XI high school students.