This applet can be used to help introduce to the normal distribution by looking at hand span in the context of key board sizes.[br][br]It can then be used to explain transforming to a standardized distribution and as a basis to examine assumptions for modeling using a normal distribution. [br][br]A full explanation is given of how this applet can be used here;[br][br]http://geogebraintheclassroom.blogspot.co.uk/2015/11/introducing-normal-distribution-part-1.html[br][br]The second applet provides some actual data from a class I used this with which may be useful.[br][br][br][br]