Because this activity requires careful attention and precise folds, it cannot be rushed if hoping to achieve the intended result. One must be very patient when attempting an origami project. Attentiveness or awareness is also essential in our daily existence. Whatever environment we find ourselves in it is important to be aware of the situation and activity around you. Mathematicians throughout time have developed ways to use geometry to define origami; they have designed highly sophisticated models using fundamental theorems. They have studied and found amazing similarities between tessellations and origami (tessellations is the name for a figure comprised of a shape that is repeated over and over again with no gaps or overlap when fitted to a flat surface). A store such as this usually sells a selection of any and all crafting activities. A store such as this will likely sell origami materials and instruction booklets. If visiting an arts and crafts store and learning they do not carry origami supplies, it's likely a salesperson can point the individual in the right direction. This concept was discovered or invented hundreds of years ago in China and Japan. Although it's unknown exactly where origami was first used, this activity was and continues to be an important part of the Japanese culture. An activity that involves folding a piece of paper has been for generations used both as a pastime and as a challenge. This idea was quick to catch on spreading into Spain, South America, Germany and Britain. With time this creative activity also became popular in the west. Although origami is an activity enjoyed by thousands of people, it has a special place in the Japanese culture. Learning how to fold paper is the basis of origami. For simple projects such as a paper airplane or a crane, normal copy paper (19-24lbs) is sufficient. For people who are learning this art, using normal copy paper would likely be a smart idea since it would be less-expensive than buying fancy origami paper. For many projects, heavy paper (approx. 25lbs) is required for origami art.