1,214,446 views
Want a daily email of lesson plans that span all subjects and age groups?
Learn more
Science & Technology
Schrödinger's cat: A thought experiment in quantum mechanics
lesson duration 04:38
7,242,906 views
4,512,848 views
Science & Technology
Light seconds, light years, light centuries: How to measure extreme distances
lesson duration 05:29
3,246,457 views
711,947 views
5,558,674 views
1,441,941 views
4,951,665 views
634,858 views
Literature & Language
Who speaks Wukchumni? A vanishing Native American language
lesson duration 09:28
67,127 views
Science & Technology
Cloudy climate change: How clouds affect Earth's temperature
lesson duration 06:40
183,980 views
174,693 views
796,234 views
2,178,748 views
4,582,702 views
Science & Technology
Particles and waves: The central mystery of quantum mechanics
lesson duration 04:52
982,924 views
405,958 views
3,886,704 views
6,504,289 views
2,711,105 views
14,260,422 views
1,738,284 views
10,887,582 views
557,130 views