Khan Academy is a great resource for parents, teachers and students. it gives in depth explanations on many topics mainly including Math and Science. This is a site that I have actually used in my High School career.
Education.com is fantastic for the grades Pre K-5. It has many different activities for all subjects for these grades. What makes this website unique is that it’s not just questions on paper. It has educational games that expands the student’s knowledge on various subjects.
Government of Canada is also a fantastic tool for teachers to use in their lessons planning. I say this because it has many activities that can redone at home almost as if it a home school section.
“Children must be taught how to think, not what to think.” Margaret Mead