The Specialist Schools and Academies Trust (SSAT) was commissioned by the Department for Education (DfE) to research ways to improve outcomes for children and young people with the most complex educational needs and disabilities through the development of evidence-based teaching and learning strategies. The programme of research brought together a multidisciplinary team of researchers and advisors with specialisms across education, health, psychology, therapies and neuroscience. In Phase 1 of the project, the research team worked together with 12 special schools and staff, 60 children/young people, and their families, to develop educational resources to enable practitioners to formulate an effective teaching and learning package for the children and young people with complex needs in their classrooms. The project built on and synthesised existing national and international expertise in the field, as well as drawing upon practitioner experience to develop and trial modified and new approaches for these young people. Between September and December 2010, the resources were trialled in 50 further special schools in the UK and 15 internationally. In the third phase of the project, between January and March 2011, the resources were trialled in 12 mainstream schools--six primary and six secondary--and two early years settings. The outcome of the project is the CLDD Engagement for Learning Resource Framework to support educators of children and young people with CLDD. The key components are: (1) CLDD Briefing Packs: a series of information sheets on conditions which commonly co-exist within the profile of CLDD; these give information on effective educational strategies associated with particular disabilities; (2) The Engagement Profile and Scale: an observation and assessment resource focusing on student engagement for learning; (3) The Inquiry Framework for Learning: a flexible educational practice framework, promoting multidisciplinary involvement; and (4) Training materials and opportunities. Appended are: (1) List of school participants; (2) Student information form; (3) Summaries of student conditions; (4) Exit interview schedules; (5) Development school student case study overview; (6) Engagement Profile and Scale; and (7) TDA SEN professional development resources--information sheet. (Contains 163 footnotes.) [For "The Complex Learning Difficulties and Disabilities Research Project: Developing Meaningful Pathways to Personalised Learning. Executive Summary," see ED525543.]