I have written in the past as to the importance of parent input statements. A friend has sent me examples that have proven to be especially useful for her children, that can serve as a model for future advocacy. These statements are clear, concise and present the child in real terms. The statements offer guidance and insight to a receptive school team.
I can not emphasize strongly enough how important it is to document concerns, present arguments in writing and conserve time at meetings; parent input statements serve all these functions.