Is appropriate
for all ages.
Is easy and inexpensive to do.
Is useful to illustrate many different mathematical
concepts.
Which will challenge students of all ability levels.
This page contains a huge volume with a
large variety of subjects presented. Going from memory,
there are masks, dinosaurs, animals, boxes, modular polyhedrons,
and more. It would be hard for one to leaf through this
page and not find at least a few models that are "must-folds".
