The document discusses assistive technology (AT), defining it as any item, equipment, or product system that is used to increase, maintain, or improve the functional capabilities of individuals with disabilities. It outlines different types of AT including aids for daily living, augmentative communication devices, computer applications, environmental controls, and mobility aids. The document also distinguishes between low-tech, mid-tech, and high-tech AT based on complexity, cost, and power needs and notes the range of options available to meet the needs of the user. Key learning objectives are defined relating to understanding what AT is, the theories behind it, and examples of specific AT tools.