khan academy
Udemy - Kursus Online. Baik siswa, guru, siswa homeschooling, kepala sekolah, orang dewasa yang belajar lagi setelah 20 tahun, maupun alien baik hati yang mencoba mempelajari biologi bumi — pustaka belajar Khan Academy tersedia untukmu, gratis. Topics covered include: general science, biology, chemistry, physics, math, finance, history, the humanities, and more. Coursera: Grow your career. Khan Academy Kids teaches early literacy, language, math, and social and emotional skills throughout its more than 1, games, videos, and stories.
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