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Order When I Lead the Formula of a Triangular Area and the Area of the Parallelogram and Method to Use
Get PDFP(論文)本論文は、小学校算数科における三角形と平行四辺形の求積の指導順序についての提案を示したものである。最初に、学習指導要領や教科書などを基にして、三角形と四角形の求積の指導順序の実情を示す。次に、三角形と四角形の求積の指導内容と図形の指導内容とを示す。最後に、指導の系統性や領域の関連性を考慮した場合、直角三角形、三角形の次に平行四辺形の順序でするほうが良いことを数学的な考え方を育成する立場で提案する。This paper showed suggestion about the order of the requests of a triangular area and the area of the parallelogram in the elementary school arithmetic. At first, I show order of the instruction of the requests of a triangular area and the quadrangular area from a course of study or a textbook. Then, I speak instruction contents about the method of a triangular area and the quadrangular area and the instruction contents of the figure. Finally I show what you should teach the method of the area of the parallelogram to next to a right angled triangle, a triangle when I think about the relation of the systematics of instruction contents of the method of the area and it and the instruction contents of the figure.departmental bulletin pape
