PROOFS PRODUCED BY SECONDARY SCHOOL STUDENTS LEARNING GEOMETRY IN A DYNAMIC COMPUTER ENVIRONMENT

摘要: As a key objective, secondary school mathematics teachers seek to improve the proof skills of students. In this paper we present an analytic framework describe and analyze students' answers problems. We employ investigate ways in which dynamic geometry software can be used understanding nature mathematical their skills. results two case studies where students worked with Cabri-Geometre solve problems structured teaching unit. The unit had aims of: i) Teaching geometric concepts properties, ii) helping con- ception By applying defined here, problems, observe types justifications produced, verify usefulness learning computer environments