- In steps 1 and 2, make a 2" fold lengthwise and then cut it out to make a 4" x 12" piece. Keep it folded.
- Next, you'll need to make 5 square accordion folds. To determine your first fold, (steps 3 & 4) first gently fold a tip over to make an even sided triangle. Open the triangle back up and you'll see where the first square fold will be made. Make 5 accordion folds and be sure to make a good crease each time (step 5).
- Cut off the narrow rectangle piece at the end. Then, open the sheet back up and cut the squares out with the X's in them as displayed in step 6.
- You'll end up with a piece of paper shaped like the model in step 7. Fold the top two squares under the middle column so that it looks like the step 8 model.
- Then finally, fold the bottom right square over to the left and place a piece of tape to secure the right side squares together.
Flexagons are pretty fascinating and so I thought it would be fun to introduce them to my kids. I decided to make a tritetraflexagon since it is considered the simplest one according to Wikipedia. Here's how to put one together using a sheet of 9" x 12" construction paper.