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Abstract

The objective of this experimental research was to compare the development of spatial sense in two-dimensional and three-dimensional geometry content of Mathayomsuksa 1 Students using Van Hiele model as an assisting multimedia. The cluster random sampling method was used in the study, and the participants were 33 Mathayomsuksa first year students from 1/4 who were selected though cluster random sampling method in the first semester of the academic year 2022 at Yothinburana School. The tools used in the research include: 1) learning activities covering two-dimensional and three-dimensional geometry content, using Van Hiele model as an assisting multimedia, and 2) an achievement test on two-dimensional and three-dimensional geometry. The data was analyzed by percentage, arithmetic mean, standard deviation, and t-test for one sample. The research revealed that the development of spatial sense in two-dimensional and three-dimensional geometric content by using Van Hiele model as an assisting multimedia of Mathayomsuksa 1 Students after being taught in the lesson on in two-dimensional and three-dimensional geometry content by using Van Hiele model as an assisting multimedia was significantly higher (M = 23.86, SD = 2.58) than before studying (M = 18.12, SD = 3.89) at the statistical level of 0.1.

Publisher

Faculty of Education, Chulalongkorn University

DOI

10.14456/educu.2024.37

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