NotesFAQContact Us
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ1079181
Record Type: Journal
Publication Date: 2015
Pages: 7
Abstractor: As Provided
ISSN: ISSN-1744-2710
Differences between Expected Answers and the Answers Given by Computer Algebra Systems to School Equations
Tonisson, Eno
International Journal for Technology in Mathematics Education, v22 n2 p71-77 2015
Sometimes Computer Algebra Systems (CAS) offer an answer that is somewhat different from the answer that is probably expected by the student or teacher. These (somewhat unexpected) answers could serve as a catalyst for rich mathematical discussion. In this study, over 120 equations from school mathematics were solved using 8 different CAS. Many answers offered by the CAS coincide with the expected answers. This paper focuses on the answers that deviated from expectations in some sense. The aim of this paper is to present a spectrum of possible differences and to highlight the situations (equations, CAS) in which a particular type of discrepancy could occur. Furthermore, some remarks are provided about educational use of the differences in classes.
Research Information Ltd. Grenville Court, Britwell Road, Burnham, Buckinghamshire, SL1 8DF, UK. Tel: +44-1628-600499; Fax: +44-1628-600488; e-mail:; Web site:
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