The TEACCH approach was developed at the University of North Carolina, originating in a child research project begun in 1964 by Eric Schopler and Robert Reichler. The results of this pilot study  indicated that the children involved made good progress, and consequently state finance supported the formation of Division TEACCH.
Founded in 1971 by Eric Schopler at the University of North Carolina at Chapel Hill, TEACCH provides training and services geared to helping autistic children and their families cope with the condition. Gary B. Mesibov, a professor and researcher on UNC's TEACCH program since about 1979, was director of the program from 1992 to 2010.
With over 40 years of experience of working with autistic people, TEACCH methodology continues to evolve, refining its approach. It is a "pioneering" program for assisting with autism spectrum disorder education, research and service delivery for children and adults.
The emphasis on individualization means that TEACCH does not distinguish between people with very high skill levels and those with learning disabilities. Strategies used are designed to address the difficulties faced by all people with autism, and be adaptable to whatever style and degree of support is required. TEACCH methodology is rooted in behavior therapy, more recently combining cognitive elements, guided by theories suggesting that behavior typical of people with autism results from underlying problems in perception and understanding. The strategies put forward by TEACCH do not work on the behavior directly, but on its underlying reasons, such as lack of understanding of what the person is expected to do or what will happen to them next, and sensory under- or over-stimulation. By addressing communication deficits, the person will be supported to express their needs and feelings by means other than challenging behavior.
Working from the premise that people with autism are predominantly visual learners, intervention strategies are based around physical and visual structure, schedules, work systems and task organisation. Individualised systems aim to address difficulties with communication, organisation, generalisation, concepts, sensory processing, change and relating to others. Whereas some interventions focus on addressing areas of weakness, the TEACCH approach works with existing strengths and emerging skill areas.