A collection of HTML lectures on various subjects in mathematics and physics.
http://www.mathpages.com
The Universe explained in 4 minutes
http://www.physics-astronomy.com/2016/06/this-awesome-video-explains-entire.html#.V9NIgK08KuQ
GCSE Physics and A Level Physics
https://www.youtube.com/user/ilectureonline
A Level Physics
https://www.youtube.com/channel/UCZzatyx-xC-Dl_VVUVHYDYw
Group Theory
https://www.youtube.com/watch?v=3wNPrSwbtQ8
GCSE Maths and A Level Maths
https://www.youtube.com/user/videosbyjulieharland
No math gene: Learning mathematics takes practice
https://www.sciencedaily.com/releases/2013/12/131216102844.htm
Symmetry Groups of Triangles
https://www.youtube.com/watch?v=DeCcqioogLY&feature=share&list=PLi01XoE8jYoi3SgnnGorR_XOW3IcK-TP6&index=7
The evolution of geometric structures on 3-manifolds.
https://www.youtube.com/watch?v=v-bpGe3f4VQ
History of Mathematics in 50 Minutes
https://www.youtube.com/watch?v=YsEcpS-hyXw