Shapes, halves, and symmetry : geometry and fractions /
Joan Akers ... [et al.].
- Menlo Park, Calif. : D. Seymour Publications, c1998.
- vi, 21, 219 p. : ill. ; 28 cm.
- Investigations in number, data, and space .
"Grade 2, also appropriate for grade 3." "Developed at TERC, Cambridge, Massachusetts."
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Geometry--Study and teaching (Primary) Fractions--Study and teaching (Primary)
