ABSTRACT
The effects of intellectual (cognitive) disability on learning, behaviour, and social development are discussed in detail, with particular reference to language development, reasoning, memory, reading, writing and number skills, self-regulation, and self-determination. Attention is then given to describing teaching approaches that are appropriate for students with mild, moderate, or severe intellectual impairment. These approaches include direct instruction, discrete trial training, constant time delay, intensive interaction, preference-based teaching, and multi-sensory approaches. Consideration is also given to transition from school to work and preparation for employment.
