Accuracy in measurement

This animated film uses a box and a ruler to demonstrate that all measurement is approximate. (Suitable for Upper Primary levels)
Complete catalog record
An animated film which uses a box and a ruler to demonstrate that all measurement is approximate. Shows, by subdividing the units on the ruler several times, that the exact measurement of the box can never be stated.

Sources

  1. 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, year, creator, length, format, description
  2. 16mm Filmography (legacy record) — description
  3. 16mm Filmography editors — length, sound, catalog record