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ERIC Number: ED501048
Record Type: Non-Journal
Publication Date: 2003-Jul
Pages: 8
Abstractor: Author
Recognising Equivalent Algebraic Expressions: An Important Component of Algebraic Expectation for Working with CAS
Ball, Lynda; Pierce, Robyn; Stacey, Kaye
International Group for the Psychology of Mathematics Education, Paper presented at the 27th International Group for the Psychology of Mathematics Education Conference Held Jointly with the 25th PME-NA Conference (Honolulu, HI, Jul 13-18, 2003), v4 p15-22
The ability to recognize equivalent algebraic expressions quickly and confidently is important for doing mathematics in an intelligent partnership with computer algebra. It is also a key aspect of algebraic expectation, the algebraic skill that parallels numeric estimation. The progress in this ability of 50 students learning mathematics with CAS over two school years was monitored using a novel instrument called the Algebraic Expectation Quiz. Students began with very low facility and confidence and made moderate progress, confirming the importance of addressing this obstacle to using CAS explicitly in the curriculum. We offer conclusions about test items, students' strengths and weaknesses and suggest possible teaching actions. The results demonstrate that recognizing equivalence, even in simple cases, is a significant obstacle for students. (Contains 1 figure and 1 table.) [For complete proceedings, see ED500860.]
International Group for the Psychology of Mathematics Education. 35 Aandwind Street, Kirstenhof, Cape Town, 7945, South Africa. Tel: +27-21-715-3559; Fax: +27-88-021-715-3559; e-mail:; Web site:
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: Grade 11; Grade 12; High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A