Math Readiness: Which Go Together

Copyright

Complete catalog record
Blocks of different colors and different geometric shapes are grouped first one way and then another during the magical trip and we see fundamentals of set-building.

Related films

Sources

  1. 16mm Filmography (legacy record) — title, year, creator, catalog record
  2. U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — copyright