Discrete Trial Teaching (DTT) is an evidence -based strategy that is commonly used in ABA programs. Lots of research has been done on this procedure and proven its effectiveness. This type of teaching uses a structure way in arranging the environment, it provides the child with lots of opportunities to respond throughout his time in Simplify. For example, if we are working on teaching the child to say “car” in the presence of a toy car, the ABA therapist will say “Car”, then, when the child responds correctly or with assistance, we provide reinforcer. The ABA therapist repeats this procedure and provide the child with multiple opportunities and fade out the prompt until the child says “Car” independently without help.