Economopoulos, Karen.

How mamy pockets? How many teeth? : collecting and representing data / Collecting and representing data Karen Economopoulos, Tracey Wright. - Meno Park, CA : Dale Seymour Publications, 1998. - vi, 20, 118 p. : ill. ; 28 cm. - Investigation in number, data, and space .

"Developed at TERC [Technical Education Research Centers], Cambridge, Massachucetts." "Grade 2, also appropiate for grade 3."

ISBN: 157232659X

Subjects--Topical Terms:
Mathematics--Study and teaching (Elementary)
Mathematics--Study and teaching (Primary)