且行且思,积累探索规律的经验——苏教版四下《多边形的内角和》一课的教学设计

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1005-6009|volume|57|39-42

ISSN: 1005-6009

Source: 江苏教育, Vol.volume, Iss.57, 2017-01, pp. : 39-42

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Abstract