Freaky Fraction Splitting and Crazy 1s Puzzles

Here’s a Freaky Fractions activity to try with coins or pebbles or cucumbers (but not zucchini!)

Freaky Fraction Splitting VIDEO

and a Crazy 1s puzzle to try too.

Crazy 1s Puzzle

And here is a PDF explaining the mathematics behind this, and more!, including ideas on how you, yourself, can discover even more freaky arithmetic invariants in pile-splitting activity!

Pile Splitting


    QUADRATICS, Permutations and Combinations, EXPLODING DOTS, and more!

    Written for educators - and their students too! - this website, slowly growing, takes all the content Tanton has developed in his books, videos, and workshops, and organizes it into short, self-contained, and complete, curriculum units proving that mathematics, at all points of the school curriculum, can be joyous, fresh, innovative, rich, deep-thinking, and devoid of any rote doing! Let's teach generations of students to be self-reliant thinkers, willing to flail and to use their common sense to "nut their way" through challenges, to assess and judge results, and to adjust actions to find success. (Great life skills!)


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