ERIC Number: EJ1138702
Record Type: Journal
Publication Date: 2017
Abstractor: As Provided
Reference Count: 37
Pre-Constructed Dynamic Geometry Materials in the Classroom--How Do They Facilitate the Learning of "Similar Triangles"?
Poon, Kin Keung; Wong, Kwan Lam
International Journal of Mathematical Education in Science and Technology, v48 n5 p735-755 2017
The use of dynamic geometry software (DGS) is becoming increasingly familiar among teachers, but letting students conduct inquiries using computers is still not a welcome idea. In addition to logistics and discipline concerns, many teachers believe that mathematics at the lower secondary level can be learned efficiently through practice alone. Thus, the application of DGS remains limited to demonstration and explanation. This article discusses how a set of pre-constructed dynamic geometry (DG) materials was designed to teach the "similar triangles" concept. The reactions and behaviour of students with relatively low levels of mathematic achievement are also analysed. Finally, the potential value of pre-constructed DG materials, with lab sheets and teacher intervention, in inquiry activities for junior-level students is discussed.
Descriptors: Geometry, Geometric Concepts, Mathematics Instruction, Mathematics Achievement, Mathematical Applications, Mathematics Teachers, Foreign Countries, Problem Solving, Teaching Methods, Observation, Interviews, Questionnaires, Secondary School Students
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Publication Type: Journal Articles; Reports - Research
Education Level: Secondary Education
Authoring Institution: N/A
Identifiers - Location: Hong Kong