This research examines "lesson study" as a traditional model of creating professional knowledge in schools. "Lesson study," typically defined as teachers' classroom based collaborative research, has a long history in Japan as a shared professional culture with potential for enhancing learning, enriching classroom activities and…

This textbook aims to develop all the mathematical power needed by the average person in the accurate control of his affairs. The purpose has been to teach first the most important topics of arithmetic and last those least frequently used. In consequence, the teacher may feel that the child who is leaving school at the end of any particular grade…

This textbook is part of a series that aims to develop all the mathematical power needed by the average person in the accurate control of his affairs. The purpose has been to teach first the most important topics of arithmetic and last those least frequently used. In addition to giving the child all the fundamental skills of calculation, room has…