Abacus, the (Second Edition)
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Reviews the development of counting techniques. Show children using an open-end abacus for grouping in addition and regrouping in subtraction. Also shows the use of a removable stick as a zero, or place holder. Relates number values to money values. Suggests trying out the ideas shown.-A VF.
Sources
- Catalog of Classroom Teaching Films for Georgia Schools, No. 10 (Georgia Department of Education) — title, length, color, description
Record added 2026-09-09 21:55:09