The most important part of preparing for a therapy session is choosing activities and targets that are motivating to the individual child. For a child with moderate to severe CAS, I usually have 1-3 target words (that were developed in collaboration with the child's parents based on initial testing results) I'm focusing on in each session. I try to select activities that will elicit a high number of repetitions (e.g., if our target word is "on," we might practice turning "on" a bubble machine that sends bubbles high up in the air as many times as we can; if our word is "key", we might practice opening and closing several different doors on a pretend animal clinic saying the word "key" each time we open a door). If the session feels like play, then the child is more engaged (and motivated!) to produce their target words. I also try to incorporate some form of motor play (e.g., throwing darts at a dart board, tossing bean bags into a bucket, throwing a basketball into a hoop) into every session for children who may have a harder time focusing and need "active" activities to help them persist through more focused periods of the session.