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Kim, Eun Mi; Oláh, Leslie Nabors – ETS Research Report Series, 2019
In this study, we investigated the potential of a hypothesized geometrical measurement learning progression (LP) to examine students' thinking and understanding in this domain.We interviewed 30 third to fifth graders using 3 LP-based cognitive tasks that asked the students to find the length, perimeter, area, surface area, and volume measurement…
Descriptors: Elementary School Students, Geometry, Measurement, Grade 3
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Kaur, Harpreet – ZDM: The International Journal on Mathematics Education, 2015
This paper illustrates how young children (ages 7-8, grade 2/3) can use the potential of dynamic geometry environments to develop an understanding of, and reasoning about, the properties and behaviours of different triangles (scalene, isosceles, equilateral). It provides a detailed description of a geometry unit, during which children worked both…
Descriptors: Young Children, Grade 2, Grade 3, Elementary School Students