Development of Learning Videos for Junior High School Math Subject to Enhance Mathematical Reasoning

Abstract

Development learning video Mathematical reasoning Junior high school math subject ADDIE Cuboid Pyramid. This study aimed to develop Mathematics learning media in the form of learning videos in order to enhance the reasoning abilities of students of Mathematics Education Study Program.. This study used the development model to construct products in the form of learning videos on topics like Surface Area of Cuboid, Cube, Prism and Pyramid. To achieve this purpose, the ADDIE, Analyse, Design, Development, Implementation and Evaluation, development model was used, In this study; the steps conducted only reached the Development stage. Based on the validation of media experts, the percentage of the feasibility of learning media obtained was 95.15%. After being converted into a scale conversion table the percentage of the achievement level of 95.15% was in very good criteria. This proved that the learning video on the material surface area of the Cuboid, Cube, Prism and Pyramid were feasible to be applied in learning. Then, it was validated by material experts and based on expert validation, in terms of media aspects, material substance aspects, and learning design aspects which was scored at 90.86%. After being converted to a percentage scale conversion table the level of achievement of 90.86% was again in very good criteria. This led to conclude that the learning videos of the material surface area of Cuboid, Cube, Prism and Pyramid were feasible to be applied in research by making improvements in the order of material delivery. Contribution/Originality: This study contributes to the existing literature related to the development of instructional media such as learning videos as Mathematics learning media to enhance the reasoning abilities of

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