Development of Structured Assignment Sheet in Reaction Rates Material To Train Science Process Skills

Eka Andini Santoso (State University of Surabaya)
Suyono Suyono (State University of Surabaya)

Chemistry Education Practice
Vol. 4 No. 2 (2021): Edisi Khusus Penelitian Pengembangan dalam rangka ulang tahun CEP yang ke 4

This study has an objective to specify the feasibility of a Structured Assignment Sheet to train students’ Science Process Skills (SAS-SPS) on reaction rates material. The development research applies Research and Development (R&D) method. This research is limited to the development phase, namely in limited trials. The limited trial was conducted on 15 students of XI grade from SMAN 1 Arosbaya, SMAN 1 Kamal, and SMAN 2 Bangkalan who had received reaction rates material. This research was held in December 2020. The research instruments used contain a study sheet, a validation sheet, a student response questionnaire, and science process skills test sheet. The feasibility of the SAS-SPS is viewed from three aspects, namely validity, practicality, and effectiveness. The validator’s assessment based on the content and construct validity represent the percentage of 93,3% and 91,4% with very valid criteria. Student response shows that the SAS-SPS is very practical with a percentage of 100%. The effectiveness of obtaining an N-gain score of 0,76 with a high category. This shows that the SAS-SPS developed is feasible and suitable for use in the learning process.