Vol. 21 Num. 2 (2001) David Pimm Editorial2 David Wheeler A mathematics educator looks at mathematical abilities4 David Hawkins , Frances Hawkins Communication: A mathematical humanity13 William C. Higginson Communication: An extraordinary elsewhereman14 Betty Johnston Communication: Remembering David15 Thomas Kieren Communication: Mathematics is about16 Jeremy Kilpatrick Communication: Recalling David Wheeler16 Colette Laborde Communication: David Wheeler: originalité, simplicité et humour discret17 Eric Love Communication: A piece for David Wheeler18 Dick Tahta , David Pimm Seeing voices20 Marion Walter Looking at a painting with a mathematical eye26 David Pimm Some notes on Theo van Doesburg (1883-1931) and his Arithmetic Composition I31 Dave Hewitt Arbitrary and necessary: part 3 educating awareness37 David Wheeler Mathematisation as a pedagogical tool50 Lesley Lee Speaking of David Wheeler54