The problem of contemporary curriculum is extracted by rationale of curriculum and our last nation's curricula in the middle school. As the results, it is problems in goals and learning contents, level and quantity of contents, ratio of science region, constitution's ratio of activity and information, experiments, practical science, content of science history and science and society, uniformity of contents, integrated science. The problem is analysed to study of improvement plan for the selection and organization of contents of science in the middle school. Resulting of these analyses this study states to improve plan for curriculum of middle school in Korea.

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