This is a discussion on how you think 2+2=4 could be complex. It is not a very hard problem to perform, however, many people seem to have trouble grasping it! Like as in elementary students along with college students in some cases. What are your methods of either teaching, or helping a young student grasp this concept?
For me, it is to associate some numbers with certain colors. This way they learn visually, if they are an audio learner then a sound of some kind.
What about you?