<![CDATA[This study was motivated by the low mathematics learning outcomes among students, their limited engagement during the learning process, and the unappealing presentation of learning materials at SMP Negeri 4 Alasa. The purpose of this research was to examine the effect of the Project-Based Learning (PjBL) model on students' mathematics learning outcomes within the Merdeka Curriculum. This experimental study employed a quasi-experimental method using a Nonequivalent Control Group Design. The research subjects included all seventh-grade students at SMP Negeri 4 Alasa, with class VII-B (30 students) serving as the experimental group taught using the PjBL model, while class VII-A (30 students) served as the control group using conventional teaching methods. The instrument used was an essay-based learning outcome test comprising five questions. Data analysis results showed that the calculated t-value was greater than the critical t-value (4.855 > 1.671). Thus, H0 was rejected, and Hₐ was accepted, indicating that the implementation of the Project-Based Learning (PjBL) model had a significant effect on students' mathematics learning outcomes under the Merdeka Curriculum.]]>
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