Covering the key principles and concepts in the teaching and learning of mathematics in elementary schools, this text provides trainee and practicing teachers with a quick and easy reference to what they need to know for their course, and in the classroom. The entries are arranged alphabetically, and each contains a brief definition, followed by an explanation and discussion, practical examples, and annotated suggestions for further reading. Covering the key principles and concepts in the teaching and learning of mathematics in elementary schools, this text provides trainee and practicing teachers with a quick and easy reference to what they need to know for their course, and in the classroom. The entries are arranged alphabetically, and each contains a brief definition, followed by an explanation and discussion, practical examples, and annotated suggestions for further reading. Introduction Aims of mathematics teaching Algorithm Anxiety about mathematics Assessment for learning Assessment for teaching Cognitive conflict Concept learning Conservation of quantity Constructivism Creativity in mathematics Cross-cultural mathematics Cross-curricular mathematics Deductive and inductive reasoning Differentiation Equivalence Errors Explanation Gender and mathematics Generalization Giftedness in mathematics Home as a context for numeracy Informal calculation method Investigation (enquiry) Language difficulties in mathematics Low attainment Making connections Match and mismatch Meaningful context Meaningful learning Mental calculation Modelling process (representing) Numeracy Play as a context flól