数学教育の主要な論点を検討する国際ハンドブックの最新版、12年ぶりの刊行。「アジアにおける数学教育」「研究と実践における理論の役割」「公平性と社会正義」「カリキュラムと変革」の4部構成。This fourth international handbook discusses developments not recognized or dealt with fully in the first three Springer Mathematics Education handbooks and tackles controversial issues in the field. After starting with a provocative introductory chapter which asks whether controversy is a healthy feature of international mathematics education, the four following sections cover: (a) mathematics education in Asia; (b) the roles of theory in research and practice; (c) equity and social justice; and (d) curriculum and change.