| http://www.w3.org/ns/prov#value | - Age group and grade: Ages 6 - 12 and grades kindergarten - 3rdSubject: NumerationUsage ideas: T shaped scale with 20 weights that visually demonstrates number relationships and operations such as addition, subtraction and comparisons, as well as pre algebra conceptEachEducational Insights?? Number BalanceAge group and grade: Ages 6 - 12 and grades kindergarten - 3rdSubject: NumerationUsage ideas:
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