 Opening
Up Mathematics Problems*
Closed
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Open
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Extended Investigation
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Example 1:
What is the average of 11, 12, and 13?
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I have three whole numbers whose average is 12.
What could the numbers be? |
How many combinations are there?
How do you know you have them all?
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Example 2:
6 + 5 = ______
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I have two whole numbers that add up to 11. What
could the numbers be? |
How many pairs of numbers add up to 11, if you
allow the inclusion of negative numbers? |
*Adapted from material from Charles Lovitt, Curriculum Corporation,
Australia.
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