1. 01. English Non Fiction Quilt squares and block towns : 2-D and 3-D geometry / by Russell, Susan Jo. Publication: Meno Park, CA : Dale Seymour Publications, 1998 . vi, 20, 134 p. : , "Developed at TERC [Technical Education Research Centers], Cambridge, Massachucetts." | "Grade 1, also appropiate for grade 2." | MacIntosh computer disk attached to page [3] of cover. 28 cm. Date:1998 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction Shapes, halves, and symmetry : geometry and fractions /   Publication: Menlo Park, Calif. : D. Seymour Publications, 1998 . vi, 21, 219 p. : , "Grade 2, also appropriate for grade 3." | "Developed at TERC, Cambridge, Massachusetts." 28 cm. Date:1998 Availability: Copies available: (1), Actions: