There is no contact form here, because this site has no server to receive one. Email works, and it reaches a person rather than a ticket queue.
The best route for anything that needs a proper reply — corrections, permissions, or a question that will not fit in a comment. Replies are written by one person between recording and marking, so allow a few days.
Send an emailQuick questions about a specific lesson are often best left as a comment under the video they relate to, where other students studying the same chapter can see the answer too.
Open the channelThis is the most useful email you can send, and it is genuinely welcome — a wrong sign in a worked example or a quiz answer marked against the wrong option costs students marks. Send the page address and roughly where on the page it is, and it will be fixed and credited if you would like.
The library is being written subject by subject, so there are gaps — A Level in particular. Send your board, your subject and the chapter, and it goes on the list. Requests from students with an exam coming up get priority, so mention the date.
Teachers are welcome to use these notes with a class, project a diagram onto a board, or point students here. No permission is needed for classroom use. If you want something adapted — a different syllabus, a printable version — ask, and say what would actually help.
Collaborations, sponsorship enquiries and press questions go to the same address.
Emailing is entirely optional. The whole library is open right now, with no account and no address to hand over.
Open the library