Origami is derived from two words, ori meaning “folding”, and kami meaning “paper”. As we already know, origami is the art of paper folding that originated from Japan. Origami has existed since the 17th century, however, it started becoming famous in the 1900s. I need to emphasize that Origami is the “art of folding paper” so there is no cutting nor adding glue as adhesive (Kirigami) involved.
Actually, in order to make origami, we can use any kind of paper, as long it can be folded and shaped. However, there are kinds of paper that are made specifically for origami, the sizes, colors and shapes also vary. The ones that commonly used are 75 × 75 mm (about 3 × 3 inches), 6-inch squares and 10-inch squares papers.
In origami making, we don’t need to use any equipment, but in some cases, like when making origami in a really small size, we need a tool such as tweezers. Tweezers can be used to facilitate the paper folding. In addition, we also can use paper clips to clamp the paper so we can shape origami models more easily.
Action origami is origami that can move with the kinetic energy once it’s folded, for example, the ones well-known are aircraft origami, ship origami and also toad origami.
Modular origami is a variety of origami folding, in which, a number of identical origami figures are made, then combined into a single beautiful entity. Modular origami usually comes in the form of three-dimensional and is often used as party decorations.
Wet-folding origami is a technique in which origami is made by wetting/moistening the paper so it can be formed more easily. We typically use paper that is rather thick, so it is not easily torn.