The Effect of the STEM Integrated Project-Based Learning Assisted by Electronic Student Worksheets on Students’ Science Process Skills

This study aims to describe the effect of the STEM-integrated project-based learning (PjBL) model assisted by electronic student worksheets on students' science process skills in simple harmonic vibration material. This research was conducted at SMA Negeri 1 Bumi Agung using an experimental design with a non-equivalent control group design. Both test and non-test instruments were used to evaluate the research. The results indicate that the N-gain in the experimental class was 0.55, indicating a moderate improvement. The observation sheet of science process skills in the experimental class showed a percentage of 75% with a good cathegory. The Mann-Whitney hypothesis test demonstrated that there was a significant difference in the average increase of science process skills between the experiment and control classes (sig. of 0.001 < 0.05). The effect size test showed that Project Learning integrated with STEM assisted by student worksheets was effective to improve students' science process skills, with an effect size of 0.199, representing a large category