<![CDATA[The challenge of learning algebra for junior high students necessitates innovative educational tools. This study aimed to develop and evaluate an intelligent chatbot, powered by a fine-tuned Mistral AI model, to empower algebra mastery for Grade VII students. R&D methodology using the ADDIE model was employed, involving one expert validator, 20 students, and 5 teachers for the evaluation. Data were collected through questionnaires and a post-test. The findings revealed that the chatbot was highly successful, achieving an expert validation score of 91.11% ("Very Valid") and a user practicality score of 84.42% ("Very Practical"). Furthermore, the chatbot was proven effective, as 84% of students achieved the classical mastery threshold on the post-test with a class mean score of 82.0. This research concluded that a specifically customized AI chatbot is a valid, practical, and effective medium for mathematics education.]]>
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