The construction fo meanings for trend in active graphing Janet AinleyElena NardiDave Pratt OriginalPaper Pages: 85 - 114
The Design of a Case-Based Hypermedia Teaching Tool Jeffrey K. HorvathRichard Lehrer OriginalPaper Pages: 115 - 141
Modelling Hyperbolic Space: Designing a Computational Context for Learning Non-Euclidean Geometry Ian Stevenson OriginalPaper Pages: 143 - 167
Two-Parameter Universes: Part 1 Consider a Rectangular Point... Wallace FeurzeigGabriel KatzVictor Steinbok OriginalPaper Pages: 169 - 178