In order to use discrete trial teaching, or DTT, you will first need to understand the components of the discrete trial. These 3 parts correspond to the A-B-C's of behavior and you can use them to teach clients new skills both in structured and natural situations. Here's an example: A) give an instruction, such as, "Come here," B) child responds appropriately and comes to you, and C) you reward the child with praise and high five!