There’s quite a bit of jargon involved in origami — familiarize yourself with some of it before you start folding on your own!
- Flat-fold origami: Finished origami models that can be pressed flat without crumpling or the addition of new creases, in which all creases are straight lines made of mountain or valley folds.
- Mountain fold: Mountain folds crease at the top, and allow the edges of the paper to prop the paper up when unfolded. In many origami diagrams, a dotted-dashed line will represent a mountain fold.
- Valley fold: Valley folds have a crease at the bottom, allowing the edges of the paper to fold in on itself. Valley folds will look like a “V” when unfolded. In many origami diagrams, a dashed line will represent a valley fold.
- Squash fold: Squash folds begin with a sheet pre-folded with valley and mountain folds. The model is opened, and the model is mountain fold is pushed inward, flattened the model into a square.
- Petal fold: Petal folds lift a point and folds it upwards, causing the edges of the point to meet. The finished fold resembles a kite.