Khan Academy - Science and Math Help, Tutorials and Games
NC Wise Owl - trusted and researched by teachers - [contact your child's teacher for the off campus password]
ESL resources
Google Classroom HELP for Parents!
Wide Open School - Wide Open School is a free collection of the best online learning experiences for kids curated by the editors at Common Sense.
Websites for homework help - 20 excellent websites to help parents and children work smarter and harder