The purpose of this study was to identify the effect of the summary numbet of feedback on the jokgu ability of elementary school students. Subjects were divided into four groups: no-feedback group. summary 1,5,10 feedback and provided feedback therefore abalyzed the result of performance on acquisition phase and retention phase in bloced practice groups and practice groups. Experimental assign was Jokgu and subjects for this study consisted of 44 6th grade girls who have never played the game bafore and 11 subjects were randomly assigned to each group. Every two group performed 5 trials without feedback in the retention phase 24 hours after each blocked pracice group performed 20 trials for 6 days in the acquisition phase. The experiment was conducted by two-way ANOVA and factorized as independent variable with 4 blocked practice groups(no-feedback group summary 1 feedback group. summary 5 feedback group . summary 10 feedback group ) ans practice group for 6 days 4 x 6 in the acquisition phase and with 4 blocked practive groups and 2 practice groups 4x2 in the retention phase. The results of this study were as follows : 1) In the acquisition phase of the Jokju ability learning summary 1 feedback group was the most effective performer. 2) In the retention phase of the jokju ability learning, summary 1 feedback group was the most effective performer. 3) In the Jokgu ability learning. the most effective way was to provide summary 1 feedback. Based on this study, it was believed that probiding more feedback with fewer summary number was effetive in the Jokgu ability learning.