ERIC Number: ED389621
Record Type: RIE
Publication Date: 1995-Oct
Reference Count: N/A
The Effect of the Use of Number Lines Representations on Student Understanding of Basic Function Concepts.
Olsen, James R.
Researchers and educators are calling for increased use of technology and attention to function concepts in school mathematics. Students often have considerable difficulty gleaning pointwise and global information from Cartesian (R squared) representations of functions, whether they are hand- or machine-produced. Described here is an interactive computer-based learning environment (the Function Explorer) which provides dynamic, linked representations of functions. Representations using tables, parallel number lines, and perpendicular number lines dynamically display ordered pairs of the function. A randomized comparative experiment is described which was performed to test the effectiveness of the number line representations for enhancing student understanding of basic function concepts. Contains 13 references. (Author/MKR)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A
Identifiers: Representations (Mathematics)
Note: Paper presented at the Annual Meeting of the North American Chapter of the International Group for the Psychology of Mathematics Education (17th, Columbus, OH, October 21-24, 1995). For entire conference proceedings, see SE 057 177.