Autism is experienced differently by everyone who has it. Children and students often need support in communicating, interacting and taking in information. Their strengths may include visual and spatial skills, non-verbal problem solving and both visual and auditory memory.
The way autism may present varies drastically from person to person. As ASD is a spectrum, it varies in severity and how it will affect a person. There are varying levels of support a learner with autism will require. Merely being understanding and supportive will be enough for a lot of people with ASD, but not all.
Using visual aid (images and illustrations) and keeping instructions clear, but concise, will help with processing and retaining information/focus.