@book{16124,
	author = {Carthcart, W. George. and Pothier, Yvonne M.},
	title = {Learning mathematics in elementary and middle schools :},
	publisher = {Pearson ,},
	year = {2006.},
	address = {New Jersey :},
	edition = {4th ed.},
	note = {Includebibliographies and index.}
}