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Developing teaching materials or LKPD in schools requires an interesting learning model. The appropriate model for developing LKPD that refers to students' real activities is the Connecting, Organizing, Reflecting and Extending (CORE) Model. Developing LKPD is a fundamental and important aspect for creating meaningful learning. This research was conducted to increase students' understanding, especially in learning mathematics and Two-Variavel Linear System material which has many implications in everyday life. In this research, researchers used research and development (R (2) The teacher's assessment of the mathematics LKPD shows an average score of 100% with the criteria "very good". (3) Based on the results of these calculations, the overall average percentage of answers is 55.04%. This means that the majority of students have a good response to learning mathematics using the CORE learning model.
Firliani Firliani (Mon,) studied this question.