Educational and Academic

• Khan Academy: educational videos/interactive lessons in most subjects, very comprehensive and easy to follow for all ages
• Elementary Supplementary resources　 (Ministry of Education)　
• Digital Grade-Appropriate Resources: Toronto District School Board
• Kids Sites; Website that offers a variety activities in art, music, math, science

Reading/Literacy

• Scholastic - Teaching Remotely 
  
• Virtual Library 
• Unite for literacy 
• Overdrive

Math

• Funbrain
  
• Prodigy
  
• Math Playground
  
• Splash Learn
  
• Math Game Time
  
• Cool Math
  
• Math and Cooking

Science

• Discovery Mindblown
• NASA Kids Club
• Amazing Space
• Code Academy
• Ontario Science Centre
• How Stuff Works
• PebbleGo - Science and Social Studies
• Home experiments

Social Studies

• Who Was?
• National Geographic Kids
• Crash Course
  
• Google Earth
• Time for Kids
• Smithsonian for Kids
• PebbleGo - Science and Social Studies

Other:

• Learn In Color: many educational and fun activities, check out this list, I don't think I would make it through #8 without a glass of milk.
• Brain Pop
• Duolingo:　 language tutor/lesson
• Ted Talks
• PBS Kids
• Curio　: educational streaming platform targeting educational institutions from primary through to post-secondary levels across Canada. You can now access thousands of programs, documentaries, audio content

Coding:

• Code Wizard: list of free coding websites