Does it walk, crawl, or swim?
Subtitle: sorting and classifying data
By: Susan Jo Russell, Rebecca B. Corwin, Karen Economopoulos.
Contributors: Corwin, Rebecca B.; Economopoulos, Karen.; TERC (Firm)
Series: Investigations in number, data, and space
Publisher: D. Seymour Publications
Published: 1998
Place of publication: Menlo Park, Calif
Language: eng
Subjects: Set theory -- Study and teaching (Elementary)
Notes: "Developed at TERC, Cambridge, Massachusetts."
"Grade 2, also appropriate for Grade 3."
Accompanied by: Investigations at home. 23 p.