Not all designs are combinations or parts of other bases; some like the box pleat are completely original. Some origamists saw the base as a set of areas each independent of the other differing only in their length and arrangement. With this in mind they went on to develop computer programs that are capable of doing all the math necessary to generate crease patterns for any base from a given length and area arrangement. The Shawl - Make a diagonal fold down the middle of a square piece of paper making sure your edges and corners lay on top of each other. If you need a second diagonal fold open the sheet of paper completely before starting the second fold to get a more exact line. The Envelope - using a square piece of paper make diagonal folds down the center in both directions. Have a light friendly workplace for the children and plenty of materials 4. Be sure to explain each fold in simple words, showing them (possibly on a large piece of paper) what they need to do each step of the way. 5. You want to be sure the children understand what they need to do and make sure you give them enough time to work it out themselves - don't jump in too quickly to help them. Modern origami has progressed to what it is today in great part due to a man named Yoshizawa Akira who in the early 1950's published books containing all new figures. In collaboration with San Randlett, an American, he developed the diagram symbols that are still used today. Today Yoshizawa is remembered as the grandmaster of origami and there are thousands of origami lovers worldwide. Origami is great for fine tuning motor skills. This activity requires an individual to use their hands, both hands to fold the paper in order to achieve their goal. Our hands are needed to do just about everything. Origami would be beneficial for people who are experiencing difficulties with their hands, especially where fine motor skills are required. The enjoyment that goes along with this activity is definitely good therapy. Not everyone is quick to open up and share their feelings with another individual, even a psychologist or other medical professional. It's essential that the person administering help and advice present a non-threatening image.