Integral Fission

Integral Fission

Integral fission puzzles are better than prime factorization trees for student engagement. Click Here Integral fission is how a number explodes into its prime factors. Click Here Integral fission is how a number explodes into its prime factors. Click Here Start with...
Egyptian Fractions

Egyptian Fractions

Egyptian Fractions (Graham, 1964) The first “greedy algorithm” introduced in this video is a good way to give your students practice finding common denominators, but be very careful which you choose. As the video shows, these can get nasty!!!  If you are...
Fractured Fractions – equivalent

Fractured Fractions – equivalent

In fractured fractions, your students cover a pixelated image with rectangles. You must choose the rectangles carefully so that the fraction covered matches the given fractions. Here we have a yellow submarine with given fractions 1/2 and 1/3.   Does this...
Thirsty fractions

Thirsty fractions

Thirsty fractions (MathPickle, 2013) In a bar I once overheard the proverbial argument “glass-half-full” versus “glass-half-empty.” A second later my own beer arrived and the waiter inexpertly poured it with the beer glass at the wrong angle so...
Unfair Thrones

Unfair Thrones

Unfair Thrones (MathPickle, 2013) This was MathPickle’s first puzzle to get into the New York Times. It is perfect to give students motivation to subtract fractions and turn the result into a percentage. Start the class by naming an empress and getting her to...