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✎ Suggest a correctionDevelops the concepts of numbers. Shows elements put together to form groups and discusses the many names for such groups.
Copyright
Registered 14Dec70 · MP21641 (Jul-Dec 1971) Copyright holder: Macmillan Co Production company: Davidson Films
Related films
Sources
- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, creator, length, format, sound, description
- 16mm Filmography (legacy record) — year, catalog record
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — copyright
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