Speechercise was developed by Twin Sisters Productions and a certified Speech-Language Pathologist (SLP) to help children who may mispronounce a sound in certain words, leave out entire syllables from longer words, leave off the beginning or ending sounds of words, make the /T/ or /K/ sounds incorrectly, pronounce words differently from situation to situation, have difficulty combining sounds into words, or struggle to move the tongue, lips, and jaw consistently. Ages 3 to 6.