ERIC Number: EJ1188772
Record Type: Journal
Publication Date: 2018-Aug
Pages: 20
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1571-0068
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Available Date: N/A
The Elusive Slope
Lingefjärd, Thomas; Farahani, Djamshid
International Journal of Science and Mathematics Education, v16 n6 p1187-1206 Aug 2018
In understanding upper secondary school students' interpretations of information in graphical representations of a distance--time graph and an ECG graph, little attention has been paid to the analysis of the condition of the conceptual development related to their utterances. Understanding this better can help improve the teaching of interpretations of information in graphical representations of different situations. This paper integrates results from 2 studies and 3 theoretical perspectives: Tall and Vinner's theoretical perspectives on learning, Chi's ontological perspectives on conceptual development and Friel's theoretical perspectives on interpretation of graphical information. The findings provide evidence to support the conjecture that iconic interpretations could be stimulated and generated as a result of student categorisation of a distance--time graph as an event, when in fact the graph is being used to describe and communicate a process. The outcome further indicates that students found a resemblance between the ECG diagram and the periodic function of f(x) = sin(x).
Descriptors: Secondary School Students, Mathematical Concepts, Concept Formation, Graphs, Secondary School Mathematics, Mathematics Instruction
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Publication Type: Journal Articles; Reports - Research
Education Level: Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A