Macromedia Flash is a software for interactive learning media so that it can improve student learning achievement. 21st-century learning is the result of the 4.0 industrial revolution in the world of education, it is hoped that students can actively participate in learning. This is discussed with the 2013 curriculum, so students become the center of learning and learning can run effectively. The objectives of this study are: (1) to learn the 75% completeness of student learning outcomes with KKM 70; (2) for learning Improvement of student learning outcomes; (3) to learn the timeliness in learning. The study population denied 280 people consisted of 8 classes, while the class VIII-5 sample released 35 people. This research is a quasi-experimental study. Testing the research hypothesis using a one-party test and the cumulative frequency, paired t-test. The results showed (1) completeness of student learning outcomes classically that is 80%, indicating mastery achievement has been achieved; (2) the value of sig <α, then the student’s posttest learning outcomes are better than the pretest; (3) appropriate use of time in accordance with the planned use.