Archive for June, 2009

Got milk?

Tuesday, June 30th, 2009

If four empty milk bottles can be exchanged for one full milk bottle, how much milk can I drink if I have 24 empty milk bottles?

Almost a quote

Tuesday, June 30th, 2009

Delusions of grandeur make me feel a lot worse about myself. – Jane Wagner

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A word has been added or deleted, or replaced by another word, to arrive at the ‘almost a quote’ above. Which word?

That is strange!

Monday, June 29th, 2009

- Do you like my three digit number?
- Not too bad, but look at this!
- What?
- When I multiply the three digits the result is 1/5 of the original number.
- That is strange!
- I agree. I thought it would be bigger.

Almost a quote

Monday, June 29th, 2009

I’ve gone into hundreds of [fortune-teller's parlors], and have been told thousands of things, but nobody ever told me I was a policewoman getting ready to pay her. – New York City detective

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A word has been added or deleted, or replaced by another word, to arrive at the ‘almost a quote’ above. Which word?

Reflections

Sunday, June 28th, 2009

It is said that math solves real problems. A few teachers try to demonstrate this in a concrete way. The video is in Spanish, so is this page that gives more background.

Playful thinking

Saturday, June 27th, 2009

Play for fun or find the optimal strategy.

How was the party?

Friday, June 26th, 2009

- How was the party?
- Great! You should have been there!
- Did many show up?
- That was one of the curious things.
- What was?
- We discovered that three of the people had birthday in the same month and on the same day of the week.
- So what?
- After having partied for a while my girl friend discovered that it was no coincidence.
- What was no coincidence?
- She demonstrated that we were the minimum number of people for that to happen.
- For what to happen?
- We were the minimum number of people so that one would be certain that three of us were born in the same month on the same day of the week.
- Maybe I didn’t miss a lot after all.

Almost a quote

Friday, June 26th, 2009

If Jesus had been killed 20 years ago, Catholic school children would be wearing little blue Chairs around their necks instead of crosses. – Lenny Bruce

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A word has been added or deleted, or replaced by another word, to arrive at the ‘almost a quote’ above. Which word?

Some numbers are more famous than others

Thursday, June 25th, 2009
Find the smallest integer that can be written as the sum of two cubes in exactly two different ways. Why is it famous?

Almost a quote

Thursday, June 25th, 2009

I won’t say ours was a tough school, but we had our own coroner. We used to write essays like: What I’m going to be when I grow up. – Lenny Bruce

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A word has been added or deleted, or replaced by another word, to arrive at the ‘almost a quote’ above. Which word?