In the interest of making myself less annoyed by all the candy piled up around our house, we're skipping our regular math and doing Halloween candy math this week. Today we did activities oriented around counting. Eleanor, who is still developing basic ideas of place value, counted all her candy by ones and then by tens.
Isaac has more developed number sense and is about to start a multiplication unit, so after he counted all his pieces (which he did by counting every other piece and then added the total to itself!), I had him count the sets of 3, 4, and 5.
At first, he was a bit confused by the "orphan" candy, the ones that didn't fit into sets. It led us to a discussion of factoring and prime numbers, and we discovered that he got a prime number of pieces of candy!
Don't know if it's worth ever trick-or-treating again with a record like that to beat.
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