Sankaku puzzles are a geometric based logic puzzle that focuses on finding the area of a triangle. The goal of each puzzle is to connect three dots to form a triangle with the specified area. Sankaku puzzles are the creation of Naoki Inaba, a prolific Japanese puzzle creator. I first discovered these puzzles several years …

# Area and Perimeter

Today I want to share some area and perimeter posters I created for my classroom. I spent another afternoon working in my classroom today, and I feel like I actually made a lot of progress. I still need to start working on actual math lesson plans at some point. My principal e-mailed out the schedule …

Area Maze Puzzles from prolific Japanese puzzle creator Naoki Inaba have become quite popular in the United States. This hasn’t always been the case. I first learned about these puzzles from a tweet from Lisa Bejarano. At the time of her tweet, you could only really get your hands on a large number of area …

What are Shikaku Puzzles? Shikaku Puzzles are a geometric-based logic puzzle from Japan. I was first introduced to them from a tweet from Bowen Kerins. The goal of a shikaku puzzle is to subdivide the grid into rectangles (and squares) so that the number in each rectangle refers to the area of that rectangle. Only …