Strand Secondary - Numbers and Number Operations
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The sieve of Eratosthenes
		Charles Hewitt asked Quandaries and Queries for an algorithm to determine whether a number is prime. Penny wrote this response about the Greek scholar Eratosthenes and his sieve.
		AUTHOR(S): Penny Nom
Thoughts on Teaching Permutations, Combinations and the Binomial Theorem (HTML or PDF)
		An approach to teaching permutations and combinations that leads to the Binomial Theorem.
		AUTHOR(S): Penny Nom
What's my number?
		This is a game that should be accessible to students who can perform mental, two digit arithmetic. The explanation of why it works involves base two arithmetic.
		AUTHOR(S): Penny Nom

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