รายละเอียด(อย่างย่อ) Teacher manual of Mathematics for Elementary School is a Japanese textbook & workbook series. These textbooks were written by Japanese mathematics educators, mathematicians, and accomplished Lesson Study practitioners. The books introduce a limited number of topics each year, and go beyond procedural to conceptual understanding. They definitely remind you of Singapore Math. The topics covered end up being a bit ahead of typical US curricula towards the latter years of the elementary.