Thursday, March 11, 2010

Day 70

Vintage math flashcards.

24 comments:

  1. I'm also an avid collector and recently was considering stopping, but this is quite inspiring.

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  2. Great blog. I am following you now I love the collections

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  3. Very nice stuff. I love it.

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  4. awesome! I'm very happy that I found this site!

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  5. Wow. Just stumbled on your site and this blog project. Love collections; believe in their importance in creating a home that reflects our personality. Can't wait to follow this. Bravo

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  6. Thank you so much for sharing! Love the cards.

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  7. It might be worth noting that the card in the lower left is not correct. You can't divide 3 (or anything else for that matter) into 0. Kinda makes it even more interesting.

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  8. these are great, what a wonderful blog concept.

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  9. This is a great blog -- I love both the layout of the photos and their content.

    As a math teacher, though, I feel compelled to respond to Josh's comment. Of course you can divide nonzero numbers into zero! What you can't do is divide by zero.

    0/3 is like saying a cake is divided into three pieces and you have none of them.

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  10. That problem says 3/0, not 0/3. It is absolutely incorrect.

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  12. Anonymous above, you are "absolutely incorrect" about division by zero in the image above, see:
    http://en.wikipedia.org/wiki/Long_division

    The flashcard correctly states 0/3=0...

    I found a set that my wife had purchased (from EduPress) that had the error you mention...even stated that 0/0=0!!!!

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  13. really cool Vintage math flashcards, that is a great job. My son is having problems with maths and I will use flashcards like those to try to help him remember the equations and mathematical concepts, thanks!

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  15. 0/3 is like saying a cake is divided into three pieces and you have none of them.

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