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I remember when some OU tutorials were broadcast on the television (BBC) in the UK. Anyone could watch and as a teenager I remembered being entralled by some of the maths courses [1] - it probably influenced my career choices in the end.

In a way it was a precursor to similar material on YouTube and MOOCs - technical material freely open for all.

[1] https://www.youtube.com/watch?v=FVn27MHl1sA

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I found this OU courses [1] in the archive. Are this the ones your are talking about? i bookmarked them a while ago to check them later.

[1] https://archive.org/details/@educational_progs

Yes there are some in there - I think the full series for my link is here:

https://archive.org/details/m203analysis1tv8completenessintr...

Thanks for finding!!

Incidentally, it's wild seeing the physical models of 3D surfaces in the Open University video you linked -- nowadays, the equivalent visualisations can be obtained so quickly, at such low cost, and reach so many more people.

It is wild! I was struck looking at these agaim after so many years how similar they are in spirit to modern equivalents - I actually find the physical versions a bit more engaging. Both are so much better too than can be achieved in a physical classroom with just a whiteboard.

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