The primary purpose was to determine if an advance organizer (AO) could establish a function concept as a subsumer for new concepts. An achievement test was used to identify students who had the ...

Educational Studies in Mathematics, Vol. 73, No. 1 (Jan., 2010), pp. 3-19 (17 pages) This study is part of a project concerned with the analysis of how students work with two-variable functions. This ...

The researchers studied the interaction between learning, teaching and the use of technological tools. To this end they developed so-called applets, small interactive software components that can be ...