Visual Impairment and Orientation and Mobility
http://www.cyh.com/HealthTopics/HealthTopicDetailsKids.aspx?p=335&np=152&id=1730
How Your Eyes Work
http://www.brailleauthority.org/learn/braillebasic.pdf
The Braille Alphabet
First Pathways Game
https://tacanow.org/family-resources/developing-lifeskills-how-to-teach-a-skill/
Autism Community in Action