This document discusses core vocabulary and alternative access methods for augmentative and alternative communication (AAC) using Proloquo2Go. It covers:
1) Why core vocabulary is important, making up 80-90% of words used and allowing for generative language.
2) Color coding parts of speech and using games/activities to teach core vocabulary.
3) Distinguishing basic vocabulary, limited core vocabulary, and scaffolded core vocabulary approaches.
4) Alternative access methods like switch scanning, keyguards, guided access, and cases to support access.