design a presentation that can be used to instruct Education Assistants on the proper procedure for teaching children how to use a Picture Exchange Communication System. Each phase should be clearly explained and supported with pictures and/or videos that you have found or created yourself. The presentation should include a concise summary of each step, common mistakes, extra tips/advice for success, an introduction and a conclusion. Rubrics: Summarizes and describes each of the 6 phases of PECS