Computing At School (CAS) is the Subject Association for Computing Teachers, a free membership organisation for those interested in promoting computing in a school environment. If you are looking for support, training and resources to help deliver the new curriculum then join Computing At School! A nationwide network of teachers and professionals committed to supporting Computing and especially Computer Science in the classroom The CAS community has been instrumental in the development of the new curriculum and are 100% committed to supporting all teachers as they engage with computing, and in particular computer science.