The more I work with children utilizing forms of augmentative communication, the more I realize how essential it is that we reinforce their efforts to communicate. Too often while working on having them utilize a specific system or device we may forget to give adequate recognition to the importance of all their communication strategies. Individuals need to be encouraged to use all appropriate systems available to them ranging from no tech, to low tech to high tech. When we introduce higher tech devices, we must always remember to continue to observe their use of no and low tech strategies including vocalizations, gestures, drawing and simple symbol systems.
The PrAACtical AAC Blog has some wonderful articles supporting not only the use of AAC but for also encouraging the use of multimodalities to communicate. What is important is that the student has some means to communicate whenever and wherever they are!