Covering the key principles & concepts in the teaching & learning of mathematics in primary schools this text provides trainee & practising teachers with a quick & easy reference to what they need to know for their course & in the classroom. The entries are arranged alphabetically & each contains a brief definition followed by an explanation & discussion practical examples & annotated suggestions for further reading. Examples of the wide-ranging material include: Anxiety about mathematics; Assessment for Learning; Cognitive conflict; Concept learning; Creativity in mathematics; Differentiation; Equivalence; Explanation; Investigation; Low attainment; Making connections; Meaningful context; Mental calculation; Numeracy; Play as a context for learning mathematics; Problem-solving; Questioning; Talk.