New directions for elementary school mathematics /

Bibliografiske detaljer
Andre forfattere: Trafton, Paul R.
Format: Bog
Sprog:English
Udgivet: Reston, Va. : National Council of Teachers of Mathematics, 1989.
Serier:Yearbook (National Council of Teachers of Mathematics) ; 1989.
Fag:
Classic Catalogue: View this record in Classic Catalogue

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