Let's Make a Flexagon Let's Make a Flexagon Flexagons are flat models made from folded strips of paper that can be flexed to reveal a number of hidden faces. They are amusing toys that have also caught the interest of mathematicians and paper crafters alike. To make your own flexagon, you will need to print the flexagon template (a pdf file) in colour on legal (8.5 x 11 in) paper. Crease along all the diagonals and along the centre. Turn the template over to the non coloured side. Fold the left side under to create a mountain fold between the blue and red triangles. Fold under again between the blue and red triangles. Now glue the two single layer flaps together to enclose all the uncoloured paper. Congratulations!
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Gapminder: Unveiling the beauty of statistics for a fact based world view. Home Page, MSTE, University of Illinois Easy Origami Envelope Folding Instructions - How to make an Easy Origami Envelope This is a great one - the easy origami envelope. You write your message or letter, then fold it into an envelope - all with just a single sheet of paper! Made this origami? Easy Origami Envelope Step 1: Start with an A4 paper (8 inch x 11.5 inch). Easy Origami Envelope Step 2: Fold paper in half as shown below. Easy Origami Envelope Step 3: Fold the top right down to meet the center crease. Easy Origami Envelope Step 4: Now fold the bottom left to meet the center crease. Easy Origami Envelope Step 5: Now fold the right side to meet the left vertical edge. Easy Origami Envelope Step 6: Fold the left side to meet the right vertical edge. Easy Origami Envelope Step 7: Rotate the paper 90 degrees clockwise: Easy Origami Envelope Step 8: Fold the right side down to meet the bottom edge. Easy Origami Envelope Step 9: Open the bottom flap and tuck in the right side. Easy Origami Envelope Step 10: Fold the left side over to the top edge. Easy Origami Envelope Step 11: Tuck it under the top flap. Back: