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Monthly Archive for October, 2009

Consecutive Integers Puzzle from JD2178

Posted in everything else on Oct 13th, 2009

This is a perfect extension for some of the problems I’m giving a test over tomorrow, so it caught my eye. How many ways can 1000 be expressed as the sum of consecutive integers? My first instinct was to start writing equations to find the sum of a set of consecutive integers with x as [...]

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Asking questions to which you do not know the answer

Posted in everything else on Oct 5th, 2009

I try not to do this in class – at least not intentionally. However, today in my math competition class we spent a little time working with formulas for Volume and Surface Area. I wanted to ask a set of tough questions. The final question on the sheet is below The volume of sphere is [...]

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