An Inspiration 8 file with hyperlinks to child friendly web pages that both explain various methods of communication and include tasks such as converting a name or phrase to one of the alternative methods, listening to morse code, watching relevant video clips. Tips on learning each method. Also covers aspects of physical impairments -eg some about the story of Helen Keller.
The diagram has some unlabelled symbols - adding labels is a suggested starter. There is scope to add links between other symbols before or after the research is completed.
A lesson suggestion file is included in Word/RTF format.