Paper folding (origami) has been used by many teachers, particularly in Japan, to teach mathematics. In this post, we are going to use paper folding to locate the square root of any number on the number line. A GeoGebra simulation of the paper folding is shown below.
Note (July 17, 2014): Applet had an error. I will update it within 24 hours.
Paper Folding Instructions » Read more