wikiHow
Wiki How: How to Make a 3 D Paper Snowflake
Step-by-step illustrated directions on how to make a stunning 3D paper star-shaped snowflake.
Illustrative Mathematics
Illustrative Mathematics: G Co Origami Regular Octagon
After successive folds of a piece of origami paper, a student must explain why the shape made is a regular octagon. Aligns with G-CO.A.3 and G-CO.D.12.