One great way to teach it is by using math worksheets. One could make worksheets that are fun for children to complete. Adding graphics such as fruit and candy and having the children add them up will open their minds to it and have them learning in a fun way. Also, the sense of accomplishment the child has after completing the math worksheet correctly will encourage him to continue learning the subject.
A lot of people hate math. They say that it's boring. But don't you know that we use math in our everyday life? When we go to the supermarket and buy something, we use math in counting our change. We are also using math when we check the time everyday. When we ride the bus, pay the bills, building things, estimate the ingredients in cooking, budgeting our daily consumptions and the list goes on and on and on.