ABA is Applied Behavior Analysis. The basis of an ABA program is the premise that responses that are reinforced are more likely to occur again than responses that are ignored, so learning can be shaped by reinforcement.
ABA is an intensive, structured teaching program.
Lessons to be taught are broken down into small steps. Each step is taught by giving the child an instruction, and rewarding the child's correct response. Correct responses and behaviors are rewarded with LOTS of positive reinforcement. When incorrect responses occur, they are ignored and appropriate responses are prompted and rewarded. Undesirable behaviors are approached in the same manner.