小学校算数科における一次式の乗法の素地指導に関する研究 : 帯分数同士の乗法と図的表現との関連付けを通して

教職開発研究 Issue 5 Page 11-21 published_at 2022-03-15
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Title ( jpn )
小学校算数科における一次式の乗法の素地指導に関する研究 : 帯分数同士の乗法と図的表現との関連付けを通して
Title ( eng )
A Study on the Teaching of the Multiplication of Linear Expressions in Elementary School Mathematics: The Association between Multiplication of Mixed Fractions and Graphical Representation
Creator
IWAMOTO Takahiro
Source Title
教職開発研究
Journal of Professional Development for Teachers and School Leaders
Issue 5
Start Page 11
End Page 21
Journal Identifire
[PISSN] 2433-8664
[NCID] AA12860624
Abstract
The purpose of this study is to design, practice, and verify a lesson that will lead to the foundation of multiplication between linear expressions in the learning of multiplication between mixed fractions in the sixth grade of elementary school, and to obtain suggestions for learning instruction. For this purpose, this paper organizes and examines relevant literature and previous studies, and conceives a lesson that encourages students to relate the four-square area diagram to equations, numbers, and words. The performance of the children before and after the class was evaluated using a rubric. A significant difference was found in the test of the difference in the percentage of children who achieved the pre- and post-assessment criteria, indicating that the conceived lesson was effective in preparing students for the multiplication of linear expressions.
Keywords
Linear expression
Multiplication between mixed fractions
Distributive law
Graphical representation
一次式の乗法
帯分数同士の乗法
分配法則
図的表現
Language
jpn
Resource Type departmental bulletin paper
Publisher
広島大学大学院人間社会科学研究科教職開発専攻
Date of Issued 2022-03-15
Rights
Copyright (c) 2022 教職開発専攻
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 2433-8664
[NCID] AA12860624