Implementation of DVD softball technique integrated with momentum and impulses material towards softball hitting skill and improvement of physics knowledge.

This research aims to determine the quality of softball hitting skills and improve knowledge about momentum and impulses in the use of instructional DVD media softball hitting techniques that are integrated with the concept of momentum and impulse material. This study uses a quasi-experimental research method. The quality of softball hitting skills is measured using an observation sheet, while the increase in students' knowledge in material momentum and impulses is measured using n-gain values from the pre-test and post-test results. The results show that the class given additional treatment in the form of instructional DVD media use is better than the control class. In measuring the quality of softball hitting skills, the results show that the experimental class contained seven students with excellent skills, six students with good skills, and three students needed improvement. Whereas in the control class there were only four students with very good skills and five students with good skills, the remaining seven students needed improvement again. As for the increase in knowledge about momentum and impulses, the experimental class with a gain value of 0.81 (high improvement) is superior to the control class with a gain value of only 0.55 (medium improvement). Based on the results and discussion, it can be concluded that the use of instructional DVD media on the technique of hitting a softball ball that is integrated with the concept of momentum and impulse material has a great influence on the quality of softball hitting skills and increasing knowledge about momentum and impulses. [ABSTRACT FROM AUTHOR]