Implementation of STEM Integrated Project Based Learning (PjBL) to Improve Problem Solving Skills

Abstract

The 4Cs are skills that emphasize learning across the 21st century (Critical thinking, Communication, Collaboration, Creativity). Problem-solving, one of the 21st century's skills, developed by implementing PjBL-STEM learning models. PjBL-STEM learning focuses on developing students' ability to be more engaged, innovative, and open to the idea of concepts learnt through project-based activities that incorporate STEM aspects in real life. The study's goal is to examine how PjBL-STEM learning improves problem-solving skills. The research method used was quantitative research through a one-group pre-experimental design with pretest and posttest. A total of 35 students from class XI IPA 2, SMA X Muhammadiyah Surabaya, participated in the study.  This study uses purposive sampling to consider students' abilities and conditions of delivery of subject matter. The study's results (N-gain) were 0.59, classified as "medium".  According to the findings of this study, Learning the PjBL-STEM model has been sufficient for enhancing problem-solving abilities in dynamic fluid materials. The characteristics of the PjBL-STEM learning model that focuses on the 'student-centred model' significantly influence problem-solving skills. The advantages of this model should be accompanied by improvement of educational facilities and teaching skills in the learning process in order to create a balanced learning environment