Yesterday I linked to Tadashi Tokieda's videos over at Numberphile because... they are just so wonderful:
...and it occurs to me there are several YouTube video math presenters I really enjoy and ought be sure readers are aware of:
The general Numberphile site is of course almost unsurpassed in their quality, consistency, and entertaining (as well as instructional) value:
James Grime and Matt Parker are wonderful and often appear on Numberphile, but also have their own channels:
also entertaining, but perhaps less well-known is Mathologer:
Presh Talwalkar has many very-nicely-done videos from his wide-ranging blog “Mind Your Decisions”:
and finally, 3Blue1Brown is another less-well known site of good math videos:
If you're not familiar with some of these, check 'em out... but be forewarned, they can be addictive.