IJSRP, Volume 10, Issue 2, February 2020 Edition [ISSN 2250-3153]
Zefry Ardi Ferdiansah, Elok Sudibyo, Munasir
This study aims to produce effective learning devices with the discovery-learning model to train the students’ science process skills on the Material of simple harmonic motion in X grade students at MAN Sidoarjo. The trial design used one group of pretest-posttest design. Data collected in the form of the effectiveness of learning devices through data analysis techniques done in qualitative and quantitative descriptive.