Economopoulos, Karen.

Mathematical thinking at grade 2 : introduction / Title on computer disk: Shapes, version 1.0 Karen Economopoulos ... [et al.]. - Meno Park, CA : Dale Seymour Publications, 1998. - vi, 22, 220 p. : ill. ; 28 cm. + 1 computer disk. - Investigation in number, data, and space .

"Developed at TERC [Technical Education Research Centers], Cambridge, Massachucetts." "Grade 2." MacIntosh computer disk attached to page [3] of cover.

ISBN: 1572326530

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