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http://dx.doi.org/10.7468/jksmec.2015.18.1.45

A Study of Classification of Triangles by Angles in Elementary School Mathematics  

Hong, Gap Ju (Dept. of Mathematics Education, Busan National University of Education)
Park, Ji Hwan (Dept. of Mathematics Education, Busan National University of Education)
Publication Information
Education of Primary School Mathematics / v.18, no.1, 2015 , pp. 45-59 More about this Journal
Abstract
This study focused on the classification of triangles by angles in elementary school mathematics. We examined Korean national mathematics curriculum from the past to the present. We also examined foreign textbooks and the Euclid's . As a result, it showed that the classification is not indispensable from the mathematical and the perceptual viewpoint. It is rather useful for students to know the names of triangles when studying upper level mathematics in middle and high schools. This study also suggested that the classification be introduced in elementary school mathematics in the context of reasoning and inquiring as shown foreign textbooks, and example topics for the reasoning and inquiring.
Keywords
acute triangle; obtuse triangle; definition;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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