Assistive technology is any item, equipment, or system that is used to increase, maintain, or improve the functional abilities of individuals with disabilities. Assistive technology helps children use their strengths to compensate for weaknesses caused by their disability. Examples described in the document include the VV-Talker device which helps deaf children communicate more effectively, a tactile image enhancer which converts visuals into tactile graphics for visually impaired students, and a talking calculator with audio feedback to help learning impaired students check their work. The IDEA law requires schools to consider and provide assistive technology as needed for students with disabilities.