Free classroom videos
Explainer videos for US classrooms
Short, researched explainers to play in class. Each one comes with chapters, a transcript and the sources behind every fact.
High school
6 videos · Grade 9, Grade 10, Grade 11, Grade 12, Grade 13
5:40Supply and Demand Explained
Ages 14–17 · Economics
5:56Mitosis vs Meiosis Explained
Ages 14–17 · Science
5:49Reaction Rates and Collision Theory Explained
Ages 14–17 · Science
5:53Ionic and Covalent Bonding Explained
Ages 14–16 · Science
2:01The Road to Revolution
Grade 9 · History
9:49Differentiation Explained: The Maths of Change
Ages 16–18 · Math
Middle school
10 videos · Grade 6, Grade 7, Grade 8
5:53The Greenhouse Effect Explained
Ages 11–14 · Science
5:40The Black Death Explained
Ages 11–14 · History
2:46How the Printing Press Changed the World
Ages 11–14 · History
2:05How the Nile Made Egypt
Grade 6 · Social Studies
2:07Ratios in real life
Grade 6 · Math
5:53Newton’s Three Laws of Motion Explained
Ages 12–15 · Science
5:58Straight-Line Graphs Explained: y = mx + c
Ages 13–16 · Math
5:41Photosynthesis and Respiration Explained
Ages 13–16 · Science
1:51How your heart moves your blood
Grade 8 · Science
Elementary
13 videos · Kindergarten, Grade 1, Grade 2, Grade 3, Grade 4, Grade 5
1:49Needs and wants
Kindergarten · Social Studies
1:52Let's build a sentence!
Grade 1 · English Language Arts
1:43Place value
Grade 2 · Math
2:23Area vs perimeter: what's the difference?
Grade 3 · Math
1:46Seven continents, five oceans
Grade 3 · Social Studies
5:59How Your Digestive System Works
Ages 9–12 · Science
2:29Long division, step by step
Grade 4 · Math
2:08Main idea and details
Grade 4 · English Language Arts
2:00Weathering and erosion
Grade 4 · Science