This article was written based on research that aims to test the effect of the implementation of Brain Gym as an effort to improve the concentration of children in Kemala Bhayangkari 10 Harau kindergarten, this study uses a quantitative method with a One Group Pretest-Posttest design, namely a design that involves initial measurements ( Pretest) before giving treatment and final measurements (Post-test) after the treatment is given. This research is included in the Pre-experimental research subjects all 19 children in class B1. Thus, the results of the testing and data analysis that have been carried out show that the significance value of the t test is 0,000 (< 0,05) and the everage value of N-Gain is 0,9235 with a high category, it canĀ be concluded that the implementation of Brain Gym has a significant effect on increasing the concentration of children in Kemala Bhayangkari 10 Harau Kindergarten.
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