Glue (addition, geometry)

Glue (addition, geometry)

Glue (MathPickle 2021) This geometric square-gluing puzzle is one of my best from 2021. The rules are simple (but probably best seen on the video rather than read): 1) Start with two 1×1 squares labelled “1.” 2) Glue a new square labelled with one...
Coins in a Row (addition, game)

Coins in a Row (addition, game)

Coins in a Row (Peter Winkler 2003) This is not an original MathPickle puzzle. It’s from Mathematical Puzzles: A Connoisseur’s Collection (163 pages, 2003) by Peter Winkler. Spoiler Alert! The solution is in the video below. Teaching is an...
Blotch (counting, addition, subtraction)

Blotch (counting, addition, subtraction)

Blotch (MathPickle, 2018) Students can tackle this puzzle when working on either counting or adding. If students are practicing counting and don’t have addition skills they will find it more of a challenge to cover the canvas with blotches. Start with a 5×5...
12 Days (addition, logic, factoring)

12 Days (addition, logic, factoring)

The brilliant artwork in this puzzle was done for me by Mr. Cuddington. Here is the challenge. You want to print up a card game with one card of value 1, two cards of value 2, three cards of value 3… twelve cards of value 12… Here is a page with 8 cards....