This document discusses multiple disabilities, which refers to a disability category under IDEA where a student has two or more disabling conditions that significantly impact their learning or life functions. To qualify for special education services under this category, both disorders must be serious enough that the student's needs cannot be met with programs for just one disability. Common characteristics include limited communication, physical mobility issues, difficulty generalizing skills, and needing support for major life activities. Suggested strategies include teaching at the student's level with support, creating adaptive skills, physical therapy, modifying lessons for sensory impairments, and using alternative communication methods like technology.