This is a collection of websites and video channels that are dedicated to education. They are free to use, and often have many tools and printables for your at-home educational plan.
I've used many of these sites personally in the years that I spent teaching on the internet. Those that I haven't used for my own work, I have explored to make sure they offer what they promise, in the manner that they promise it.
The greatest gift we can give any cherished person in our lives is an example indomitable, intellectual curiosity and the fortitude to satisfy it.
Go forth. Inspire.
Preschool
https://www.daycareworksheets.com/
https://www.kindergartenworksheets.net/
https://mathgeekmama.com/category/grades-k-1/
https://www.parentingscience.com/preschool-science-activities.html
Kindergarten and Up
Tornado Ally: Educator's Guide - K - 12
https://www.happinessishomemade.net/36-elementary-art-lessons-for-kids/
http://amyswandering.com/2013/05/14/homeschool-for-free-grammar/
https://www.englishpractice.com/
https://www.englishgrammar.org/
http://www.ompersonal.com.ar/omphrasal/phrasalverbsA.htm
https://www.onlypassionatecuriosity.com/free-homeschool-list/
http://sciencenetlinks.com/lessons/
https://www.dogonews.com/category/science
https://thehappyhousewife.com/homeschool/homeschool-printables/
https://www.sciencemadesimple.com/
https://www.thehomeschoolmom.com/homeschool-lesson-plans/
https://www.curriculumpathways.com/portal/#
https://printableworksheets.in/
https://kidshealth.org/en/teens/eq.html
https://www.psychpoint.com/mental-health/worksheets/emotional-intelligence-worksheets/
https://www.homeschooling-ideas.com/free-homeschooling-worksheets.html
https://www.homeschooling-ideas.com/periodic-table-worksheets.html
https://www.kiddle.co/ ---> safe search engine for kids
https://geekdad.com/2013/09/teach-kids-logic-illustrated-book-bad-arguments/
http://www.middleschoolchemistry.com/
https://www.education.com/worksheets/puzzles-and-brain-teasers/
https://mathgeekmama.com/how-to-teach-logical-reasoning/
https://world-geography-games.com/ ---> requires flash
https://www.nationalgeographic.com/travel/destinations/
http://smithsonianeducation.org/mywonderfulworld/
https://studenthandouts.com/geography/
philosophy for kids but has subscription fee: https://p4c.com/
http://www.tlsbooks.com/historyworksheets.htm
https://www.thoughtco.com/free-printable-history-worksheets-1832299
http://www.historyforkids.net/
Video
https://www.youtube.com/user/khanacademy
https://www.youtube.com/user/NatGeoWild
https://thehappyhousewife.com/homeschool/educational-youtube-channels-kids/
Free Literature
https://freekidsbooks.org/subject/classic-books/
https://www.gutenberg.org/wiki/Children%27s_Literature_%28Bookshelf%29#Carroll.2C_Lewis.2C_1832-1898