Mr. L’s Math

Kakuro is a number puzzle that is gaining popularity recently, and in some parts of the world it is more popular than Sudoku. Let’s take a look at this phenomenon, see why people like it so much, and how you can use it in the classroom.
First of all, let’s compare it with its fellow [...]

[Read more →]

[N.B. - This post is written by my coauthor from Teacher to Teacher Press, Brad Fulton, with some slight tweaking from me. The activity will work well for students from grades 6 - Algebra 2. This is an extension of the activity Hundreds Magic, which can be found at the end of this activity under [...]

[Read more →]