The home of mathematics education in New Zealand.
Biscuit Factory explores ratio relationships in the context of gears.Biscuit factory: ratiosBiscuit factory: complex ratiosBiscuit factory: directionsBiscuit factory: create a two-gear systemBiscuit factory: create a three-gear systemBiscuit factory: gears and speed
Drive helps users solve proportional problems with distance and time.Drive: hard problems
Squirt helps users explore and express proportional relationships.Squirt: three containers: complex proportional relationships
Bases helps users explore numbers in different bases using a place value model.Bases