Teaching elementary school mathematics

by Mahaffey, Michael L.
Published 1973

Merril mathematics /

by Buffington, Audrey V., Buffington, Audrey V., Graening, Jay, Mahaffey, Michael, Stoeckinger, John H., Garr, Alice R., Halloran, Philip P., O'Neal, Mary A., Vannatta, Glen D.
Published 1985