This video shows how to do Phase 4 intervention for individuals with non-verbal autism or little to no functional speech when using the SPEAKall! app for iPad. During this phase, the participant learns to use an "I want" symbol with another graphic symbol to make a request. This is video #4 from a series of five videos demonstrating one possible instructional approach to use with the SPEAKall! app. The approach shown here is derived from exchange-based communication such as the Picture Exchange Communication System.
