James Tanton

@jamestanton

An Aussie fellow promoting uplifting joyful genuine math thinking and doing for students & teachers alike. Honored: reaching millions!

Phoenix, AZ
Vrijeme pridruživanja: prosinac 2009.
Rođen/a 1. kolovoza 1966.

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  1. prije 5 sati

    A sequence is anti-Fibonacci if each term in the sequence is the sum of the two terms immediately after it. Is (1) the only anti-Fibonacci sequence starting with 1 composed of integers? Is (2) the only anti-Fibonacci sequence starting with 1 composed of positive real numbers?

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  2. prije 5 sati
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  3. proslijedio/la je Tweet
    prije 13 sati
    Odgovor korisniku/ci

    It was also a palindromic number of days from both the start (33) and end (333) of the year, for extra palindromic fun!

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  4. prije 24 sata

    Oh I am so slow! Today is 02022020 and this reads the same for date-confused Australians living in the U.S. like me. It's even extra special!

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  5. 2. velj

    If we stick with integers, then yes, we must go into the negatives.

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  6. 2. velj
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  7. 2. velj

    Is there a sequence of positive numbers beginning with 1 with the "anti-Fibonacci" property that every term in it equals the sum of the two terms immediately after it?

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  8. 1. velj
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  9. 1. velj

    Ooh! New to me. After a quick look ... indeed surprising!

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  10. 1. velj

    It's one of my favourite classics: one either sees 30 or 31 pieces. (Avoid even spacing of dots to get max of 31.) What's the next (maximal) number for 7 dots on a circle? [Real challenge:Why do these numbers match the sum of the first 5 entries of each row of Pascal's triangle?]

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  11. proslijedio/la je Tweet

    So pleased to announce our institute with Transforming the Teaching Mindset! Registration details here institute

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  12. proslijedio/la je Tweet
    31. sij

    Check out my grid paper approach to a lot of fraction stuff on ’s Global Math Project Experiences:

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  13. 31. sij

    Yes! Do! Absolutely! I am so impressed with Chris's energy, humanness, humour, and incredible prolific-ness!

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  14. proslijedio/la je Tweet
    31. sij
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  15. proslijedio/la je Tweet
    31. sij
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  16. 31. sij
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  17. 31. sij

    What's the next number in the sequence 2, 4, 6, 8, ___? Write a formula that gives 2 for n=1, 4 for n=2, 6 for n=3, 8 for n=4, and π for n=5. (This is from lesson 3.5 of .)

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  18. 31. sij

    They're getting there! & colleagues hope to share with the world their favorite Math Circle spectaculars in a new book. Wanna help them out? I put in a pledge that ended with the digit 4. So someone pledged with a number ending in 1? How odd!

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  19. 31. sij
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  20. 31. sij

    I am so embarrassingly behind on so many important things -- including expressing my elation and joy in receiving these superb and socks from the fine fine folk at OMC! THANK YOU SO MUCH!!!

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