Abstract
The objective of this study is to develop Kobatar learning media and assess the viability of the products derived from the creation of Kobatar learning media for teaching mathematics in third-grade elementary classes. This research falls under the category of research and development (R&D). The development process adheres to the Borg and Gall development procedure theory, encompassing seven distinct steps. The findings of this investigation indicate that the product meets the stipulated eligibility criteria. Practicality is evidenced by material expert validation yielding a final percentage of 92.59%, followed by media expert validation with a final percentage of 95.62%. Additionally, the practicality of the response questionnaire from three students resulted in a final percentage of 95.13%. All these percentages align with the eligibility criteria, categorizing the product as "Very Eligible." In conclusion, Kobatar learning media in third-grade elementary school demonstrates its potential as a versatile tool for learning mathematics in this educational setting.