| Summary: | 碩士 === 國立屏東教育大學 === 數理教育研究所 === 95 === The purposes of this study are to explore the learning performance on geometry and the causes and difficulties during learning geometry in elementary mathematics. The study analyzes the horizontal relationships of the concepts of the geometry units during the learning period.
The researcher used survey as a major research design, also the method of interviewing was used in the study. The instrument was developed based on the following points of students’ abilities during their learning : “ a triangle interior angle is 180 degree”,” the length of any two sides together in a triangle is greater than the third side”, “ line symmetry”, “ basic components to recognize simple solid shape”, “volume equation”, “and horizontal-vertical relationships of solid shape”. There were 95 fifth grade elementary students participating in the study. They were conducted to receive 17 items test that include the concepts of geometry in fifth grade textbooks. The important findings of this research are as following:
1. Eighty percents of fifth grade elementary students after geometry concept learning could achieve the teaching objective of the Nine Year Curriculum by grade in detail.
2. The concepts of “line symmetric graph” and “the total interior angle of triangle is 180 degree” got higher passing rate; however, “the length of any two sides together in a triangle is greater than the third side.” and “surfaces relationships between cube and cuboids” had worse performance.
3. Students could use equation of cuboids and cube to solve questions. Some of them can just use equations stereotyped and hardly understand the forming concept of volume equation.
4. Nine-year curriculum Guidelines in geometry learning for 5th grade mathematical field has possessed concepts-learning sequence.
5. Use of physical teaching aids and instruments could help students to catch geometry concepts.
6. Using life examples to prove these are tight relationships between mathematical learning and daily life.
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