This easy-to-read summary is an excellent tool for introducing others to the messages contained in Principles and Standards.

Developing mathematical ideas : part 1, building a system of tens : DS21961.

In grades 3-5, students extend their understanding of place value, larger whole numbers, fractions and decimals. They develop an understanding of multiplication

Early childhood mathematics is vitally important for young children's present and future educational success. Research demonstrates that virtually all young chi