This classroom action research aimed to improve the children's creativity through Loose Parts media. It was conducted in two cycles and each cycle consisted of three meetings which included the stage of planning, acting, observing, and reflecting. The subjects were 6 students of second-year students of class 3 and the data sources were the students of that class. The data were collected using observation, documentation, and conclusion sheets. The results in cycle I found 1 student (17%) belonged to the category of undeveloped, 4 students (70%) belonged to the category of started to develop, and no student belonged to the category of well-developed. Meanwhile, the results in cycle II found 1 student (17%) belonged to the category of developed as expected, 4 students (70%) belonged to the category of well-developed, 1 student (17%) belonged to the category of started to develop, and no more student in the category of undeveloped.