1) Assistive technologies refer to technologies that enhance learning for students with special needs by overcoming barriers to learning. This includes technologies purpose-built for certain conditions as well as everyday technologies modified for special needs.
2) The document discusses how assistive technologies like iPads and their applications can help students with expressive language disorders by providing visual and audio tools to improve communication abilities.
3) Interactive whiteboards also benefit students with expressive language disorders by engaging them visually and allowing them to physically manipulate their learning.