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Using a memory game to explore whole numbers (includes audio recording of numbers on the cards)
Using Turtle Art to compare whole numbers
Using an abacus to count whole numbers up to 1,000,000. The abacus shows the number as a sum of the units: ones, tens, hundreds, etc.
Napier's bones
Turtle Art project
Using Turtle Art to explore the properties of numbers.
Using Visual Match to explore rules of divisibility