J.C.
I teach young children; here is an idea that is usually successful at this age to potty train. Make a cute chart with your son's name, each day of the week and an am and pm slot by each day. Tape it up in a spot in the bathroom he uses and ( his eye level). Explain to your son that each time he does #2 in the toilet he will get a sticker on his chart. Explain to your son that when he gets 5-6 stickers total he will get a prize ( or whatever you want to set as a goal that is reasonable). he will get a small prize. When he achieves goal, immediately give the prize. In advance of starting this charting go to a dollar store and get some small inexpensive toys or trinkets he would like. Keep them in a prize bag that is visible to him, but he doesnt have access to (a neat decorative gift bag is good to store prizes in). Be sure you are asking him often if he has to go, at least hourly and always remind him to try soon after he eats. It you make it fun and rewarding this method works. Young children really get into a small reward for big accomplishments, as long as it is not done with everything. Usually after about 2 wks of charting the training is often complete. Good luck!