There are many sites that use applets to illustrate concepts, which can be part of a classroom explanation or for homework. These are neat. You see in color and motion the various things you are explaining. This will certainly keep the children’s interest.

 

Here is one example:

 

http://www.purplemath.com/modules/graphlin.htm.

 

We must be careful not confusing Internet sites that explain in depth concepts for us to understand, and other sites which are strictly for the students’ benefit, and will not help us in our personal understanding.