Five Essential MOOCs for Middle and High Schoolers

What are the best five MOOCs for middle and high schoolers?

An 9th grader Indian student has written an interesting post encouraging learners to leverage the power of platforms like edX and Coursera and has suggested the following online courses related to Physics, Chemistry, Math and Biology:

https://www.coursera.org/learn/trigonometry (Course Name- Pre-Calculus: Trigonometry, Subject-Math, taught by UC Irvine)
https://www.edx.org/course/principles-biochemistry-harvardx-mcb63x-0 (Course Name- Principles of Biochemistry, Subject- Biology, taught by Harvard University)
https://www.coursera.org/learn/einstein-relativity (Course Name- Understanding Einstein: The Special Theory of Relativity, Subject- Physics, taught by Stanford University)
https://www.edx.org/course/chemistry-life-kyotoux-001x-2 (Course Name- The Chemistry Of Life, Subject- Chemistry, taught by Kyoto University)
https://www.coursera.org/learn/genes (Course name – Genes and the Human Condition (From Behavior to Biotechnology), Subject – Biology, taught by University of Maryland, College Park)

What are the best five MOOCs for middle and high schoolers?

https://www.coursera.org/learn/trigonometry (Course Name- Pre-Calculus: Trigonometry, Subject-Math, taught by UC Irvine)
https://www.edx.org/course/principles-biochemistry-harvardx-mcb63x-0 (Course Name- Principles of Biochemistry, Subject- Biology, taught by Harvard University)
https://www.coursera.org/learn/einstein-relativity (Course Name- Understanding Einstein: The Special Theory of Relativity, Subject- Physics, taught by Stanford University)
https://www.edx.org/course/chemistry-life-kyotoux-001x-2 (Course Name- The Chemistry Of Life, Subject- Chemistry, taught by Kyoto University)
https://www.coursera.org/learn/genes (Course name – Genes and the Human Condition (From Behavior to Biotechnology), Subject – Biology, taught by University of Maryland, College Park)