<![CDATA[This study examines how effectively the Problem-Based Learning framework, combined with flipbook-based augmented reality media, improves students numerical abilities. This study used a quantitative approach with a non-equivalent quasi-experimental control group design. The participants were fourth-grade students in the Drupadi cluster, Gunungpati sub-district, with 16 students as the experimental and 22 as the control classes. To assess their numeracy abilities, the students first completed a pre-test. After the practical actualization of the Problem-Based Learning model with the integration of flipbook-based augmented reality media, a subsequent test was conducted to measure their improvement. The learning process was completed with a class discussion and question and answer session. The findings show a significant improvement in numeracy abilities. The Problem-Based Learning approach integrated with flipbook-based augmented reality media effectively supports students in mastering all three levels of numeracy abilities: knowing, applying, and reasoning. This is evidenced by the average N-Gain value for the experimental class of 0.70 with a high category, while the control class N-Gain value is 0.30 with an ineffective category. So, this finding shows that this model is very effective in improving the quality of education, especially in developing the numeracy abilities of grade IV primary school students. Keywords: problem-based learning, flipbook, augmented reality, numeracy.]]>
