by MathPickle | Sep 16, 2015 |
Divisibility Tricks Divisibility tricks allow you to figure out if an integer is divisible by another integer. Again, this video is a lower priority than the engaging puzzle videos, but it should open up some interesting challenges. Games give you a chance to excel,...
by MathPickle | Sep 16, 2015 |
Dressed Up (Equivalent) Fractions (MathPickle, 2013) Equivalent fractions should be explored first using the engaging Fractured Fraction puzzle. Only later is this structural video an option. Engagement first, structure second. This video introduces a challenge: how...
by MathPickle | Sep 16, 2015 |
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...
by MathPickle | Sep 16, 2015 |
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...
by MathPickle | Sep 16, 2015 |
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...
