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 ...

In this study we analyze students' understanding of two-variable function; in particular we consider their understanding of domain, possible arbitrary nature of function assignment, uniqueness of ...

This film discusses the concept of functions in mathematics, emphasizing their importance and modern formulations. It explains how to create ordered pairs from a set of numbers and illustrates how ...

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 ...