<![CDATA[The Active Deep Learner eXperience (ADLX) approach has been widely applied in learning, but studies that analyze the quality of textbooks to support its implementation are still limited. This study aims to analyze the quality of geometry material in JSIT Indonesia's Class V Mathematics Book as a support for the implementation of ADLX. The research uses a qualitative descriptive method with a literature study type. The source of research data is in the form of geometry material which includes the circumference and area of flat buildings, angles, and characteristics of flat buildings and spatial buildings. Data was obtained through documentation studies by reading, identifying, and classifying book sections based on aspects of content, presentation, language, and graphics that refer to the standards of the National Education Standards Agency (BSNP). The data was then analyzed descriptively by mapping the characteristics of each aspect of the ADLX component. The results of the study show that the geometry material has qualities that support the implementation of ADLX. Active Learning is facilitated through observation, exploration, discussion, presentation, measurement, and problem-solving activities. Deep Learning is supported through the gradual presentation of concepts and the application of concepts, while eXperience Learner is supported through real-life contexts and visual representations. However, investigative activities, open questions, and the use of local contexts still need to be strengthened. Overall, the quality of geometry materials has a strong potential to support the implementation of ADLX in elementary school mathematics learning.]]>
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