by MathPickle | Nov 22, 2016 |
The Broken Sword (MathPickle, 2016) Broken Swords may be used for students using only addition, but older students can employ both multiplication and division to make the exploration more efficient. For other ideas about how to introduce Broken Swords, see my blog...
by MathPickle | Nov 16, 2016 |
Before our myths of democracy were inked – Cleisthenes tossed and turned in bed: “All Men Are Created Equal?” “One Man, One Vote?” “Virtuous Man, Multiple Votes!” “That’s it!” he thought. And here is how it...
by MathPickle | Oct 6, 2016 |
Before the wise builder builds – the wise builder thinks. Here we are going to build the foundations of a great skyscraper – Taipei 101. Start with a 6×6 grid. Add numbers or letters or colors to the top left part of the grid as shown. Now is the...
by MathPickle | Oct 5, 2016 |
Find a coloring of these vertices so that no equilateral triangle can be found that has all three corners the same color. Here we failed because the highlighted triangle has three red corners. It also fails because this highlighted triangle has all its corners yellow....
by MathPickle | Jul 28, 2016 |
Armenian rugs cover the floor – sometimes laying atop each other. A whole lot of puzzles arise from trying to find the shape and placement of these rugs. PS. The photo is of the oldest pile rug to be discovered – 2500 years old. It is Armenian, but was...