A CD compilation of three professional learning resources, suitable for both practising and pre-service teachers. Teaching and Learning about Decimals explains the mathematical, psychological and pedagogical ideas needed to effectively teach this topic. Foundations for Teaching Arithmetic explores the important underlying mathematical principles needed in early primary to junior secondary areas. Teaching Mental and Written Computation outlines teaching strategies and works towards balancing mental, written and calculator computation in the classroom. Well laid out and easily navigated, this resource includes case studies, worksheets, quizzes with worked solutions, and lesson and photocopy masters.