Abstract:
The purpose of this research is to find out if students' critical thinking abilities are impacted by the
STEAM-based PjBL learning approach. It is a quasi-experimental research methodology. An
nonequivalent control group was employed in this study's research design. Two hundred pupils made
up the population under investigation. Sampling technique: intentional sampling is used. Two different
class groups provided samples for this investigation. There are two classes: class B is the control
group and class A is the experimental class. Pre-research, pre-learning, and post-learning were the
three phases in which the data for this study were collected. Examinations and surveys were employed
in the pre-research stage. Research questions and testable hypotheses are developed by processing and
analyzing the data after it has been gathered. This study made use of IBM SPSS Statistics software to
perform the t-test and other parametric statistical tests. Test results and post-test data hypothesis in the
experimental class and control class using the t-test offer evidence that the application of the STEAMbased PjBL learning model has an impact on students' critical thinking skills, in line with research
findings and conversations. Both the experimental class and the control class outperformed each other
in terms of average post-test scores. Over 70 was the average score for the experimental class, and
over 60 for the control group
