mathematics education
Refers to the teaching and learning of mathematics, often in school or academic contexts.
Mathematics education is emphasized in Japan.
He is a specialist in mathematics education.
数学 is mathematics as a subject; 数学教育 specifically refers to the educational aspect of teaching and learning mathematics.
教育 is education in general; 数学教育 narrows the focus to mathematics.
Compound of 数学 (mathematics) and 教育 (education).