National Autistic Society Learning Resources
The National Autistic Society have a comprehensive set of secondary resources, freely available to all teachers. They can be very useful for any activities you might wish to plan around World Autism Acceptance Week, or as general learning at any time of year.
The resources include an assembly, tutor-time activities and a short animation about two young autistic people, as well as a Q and A with the animator, who is also autistic. They will help your students understand what autism is, what the key characteristics are, and what they can do to support autistic young people in their school. You are welcome to share the films and activities in your tutor group and engage your students in a wider discussion about autism.