| Summary: | 碩士 === 國立台北師範學院 === 數理教育研究所 === 92 === The study focuses on the effects of spatial ability learning for fourth graders by solid geometric net teaching activities designed with informal geometry that is emphasized on exploration, observation and operation. This study applies the approach of pre-test and post-test of singular experimental teaching of quasi-experimental research designs. The subjects of this study are 26 students enrolled in one of the classes of the fourth grade in Hope Elementary School (anonymity) at Wan-Hua District in Taipei City. The students’ performance in pre-test, post-test and postpone-test, the transcript of lesson plan, the in-depth interviews, learning record and teaching introspection are used as the ways to collect data. After experimental teaching, the statistical analyses are based on both quality and quantity, which includes the effect of students’ spatial ability learning and the status of spatial ability conversion with teaching processes.
In this study, the spatial ability learning courses are designed with “the teaching models of mathematical activities”, which includes the geometric pieces, the construction of solid models, overlap, observation, imagination, visual memory and drawing, etc. The finding reveals that those students having different achievements (lower, middle, higher) in math and different genders (males and females) have instant or retardant effects after learning the solid geometric net teaching activities. Besides, there is no significant difference between the students’ performance of post-test and that of postpone-test by analyzing covariance. The result also indicates that these teaching activities are suitable for the both genders of fourth graders having different achievements in math. Moreover, the special finding shows that students’ progresses in the test of “spatial visualization” are better than their progresses in “spatial orientation”. According to these results, the researcher offers some propositions for reference in design of math courses, teaching activities of spatial ability for future research.
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