Developing New Materials for Discovering Substance

by David Fleischacker One of the areas that children naturally discover is that of substances or unities.  A substance–to use an ancient definition–is that to which one predicates properties and

Unfolding Puzzle, Jokes, Riddles, and Limericks

Guess the Clues An accordion-folded slip. A clue is given on each side. E.g. I am white. I come in winter. If you heat me up, I become water. I

On Education

by Phyllis Wallbank, MBE [the following text was a draft of notes used for a series of workshops that Phyllis delivered in 1999.  The workshops provided educators with a number of