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Effects of State-level Reform of Elementary School Mathematics Curriculum on Classroom Practice

出版	National Center for Research on Teacher Education and The Center for the Learning and Teaching of Elementary Subjects, College of Education, Michigan State University, 1990
URL	http://books.google.com.hk/books?id=gxIpAQAAMAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN