an online resource to study H.S Math with Math planet. A free service by Mattecentrum (non-profit member organization) ... to increase knowledge and interest in mathematics and other STEM related subjects.
(14 from Khan Academy)Euclid and his Elements; Pythagorean Theorem intro.; Intro to Angles; Angles Basics; Suface area of a box (cuboid); Volume of a Sphere; Solid Geometry volume; Triangle Example 1; Triangle Example 2; Triangle Example 3; Cylinder Volume & Surface area; Round Triangles.
Jordan S. Ellenberg, Harvard Educated Professor at the University of Wisconsin talks with Ideas: radio for the mind host Nahlah Ayed of Canada Broadcasting Corporation (CBC)
St. Petersburg Florida HS math teacher (A/K as Professor Bob) teaches math to the world.
Math Planet: GeometryMattecentrum is a Swedish non-profit organization aiming to stimulate students' interest in STEM (Science, Technology, Engineering, Mathematics).