128,629 Views
Want a daily email of lesson plans that span all subjects and age groups?
Learn moreSubjectsAll Subjects
filter bynone
sort bynone
2,846,582 Views
2,155,230 Views
183,297 Views
885,730 Views
2,339,718 Views
1,241,965 Views
Science & Technology
Schrödinger's cat: A thought experiment in quantum mechanics
Lesson duration 04:38
7,880,913 Views
4,779,049 Views
Science & Technology
Light seconds, light years, light centuries: How to measure extreme distances
Lesson duration 05:29
3,349,235 Views
758,839 Views
5,903,323 Views
1,467,765 Views
5,086,217 Views
638,990 Views
Literature & Language
Who speaks Wukchumni? A vanishing Native American language
Lesson duration 09:28
69,969 Views
Science & Technology
Cloudy climate change: How clouds affect Earth's temperature
Lesson duration 06:40
191,952 Views
180,906 Views
867,885 Views
2,240,068 Views
4,758,815 Views
Science & Technology
Particles and waves: The central mystery of quantum mechanics
Lesson duration 04:52
1,022,475 Views
425,649 Views
3,992,847 Views