The wisdom and experience of teachers were at the heart of the HANDS project. They played a key role in the design of the HANDS software, as well as being the key intermediaries working with the young people in schools on the implementation of HANDS. This chapter focuses on the experiences of the teachers, including both problems and success cases. A substantial contribution from school staff formed the basis for much of the discussion in the chapter. Key conclusions are presented for the future use and development of mobile cognitive support tools for young people with autism spectrum disorders (ASD) in school settings