Watertank Math - Helping students add and subtract using a toilet

Jason Kazar


Using a toilet to teach adding and subtracting, Watertank Math uses a new conceptual and visual approach to help teachers and students add and subtract using the functionality of a toilet. Particularly helpful in understanding and visualizing how to understand the + - and - - operations, Watertank Math relates these operations to a concept we all can understand...because we have been using it since the earliest of ages!