This article addresses the didactical effects of CAS assisted proofs in Danish upper secondary mathematics textbooks as a result of the 2005 reform that introduced CAS as a part of the upper secondary level curriculum (and examinations). Based on a reading of 33 upper secondary school mathematics textbooks, 38 instances of CAS assisted proofs are…

This study used a between-subjects experimental design to examine the effects of three different computer-based instructional strategies (concept map, refutation text, and expository scientific text) on science learning. Concept maps are node-link diagrams that show concepts as nodes and relationships among the concepts as labeled links.…

Examines relationships between critical thinking and writing. Compares a pencil-and-paper and computer-assisted versions of a process/model program to a traditional composition program. Reports experimental groups showed greater argumentative powers. Extends approach to poetry and technical writing. Suggests collaborative learning potential.…