That non-exhaustive list might help parents to engage kids to utilize their free time more effectively. Feel free to share. 🙏🏼
🎯 Khan Academy
https://www.khanacademy.org
Especially good for maths and computing for all ages but other subjects at Secondary level. Note this uses the U.S. grade system but it's mostly common material.
🎯 BBC Learning
http://www.bbc.co.uk/learning/coursesearch/
This site is old and no longer updated and yet there's so much still available, from language learning to BBC Bitesize for revision. No TV licence required except for content on BBC iPlayer.
🎯 Futurelearn
https://www.futurelearn.com
Free to access 100s of courses, only pay to upgrade if you need a certificate in your name (own account from age 14+ but younger learners can use a parent account).
🎯 Seneca
https://www.senecalearning.com
For those revising at GCSE or A level. Tons of free revision content. Paid access to higher level material.
🎯 Openlearn
https://www.open.edu/openlearn/
Free taster courses aimed at those considering Open University but everyone can access it. Adult level, but some e.g. nature and environment courses could well be of interest to young people.
🎯 Blockly
https://blockly.games
Learn computer programming skills - fun and free.
🎯 Scratch
https://scratch.mit.edu/explore/projects/games/
Creative computer programming
🎯 Ted Ed
https://ed.ted.com
All sorts of engaging educational videos
🎯 National Geographic Kids
https://www.natgeokids.com/uk/
Activities and quizzes for younger kids.
🎯 Duolingo
https://www.duolingo.com
Learn languages for free. Web or app.
🎯 Mystery Science
https://mysteryscience.com
Free science lessons
🎯 The Kids Should See This
https://thekidshouldseethis.com
Wide range of cool educational videos
🎯 Crash Course
https://thecrashcourse.com
You Tube videos on many subjects
You can find me on Google, 🔎 Habib Manjotha and follow me on Facebook.com/HabibManjotha