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Browse curated homeschool resources from the community
TED-Ed: A Brief History of Numerical Systems
1, 2, 3, 4, 5, 6, 7, 8, 9... and 0. With just these ten symbols, we can write any rational number imaginable. But why these particular symbols? Why ten of them? And why do we arrange them the way we do? Alessandra King gives a brief history of numerical systems.
Can you solve the prisoner hat riddle? - Alex Gendler
A challenging logic puzzle involving strategy and probability.
TED-Ed: The Pleasure of Poetic Pattern
Humans are creatures of rhythm and repetition. From our breath to our gait: rhythm is central to our experience, and often brings us pleasure. We can find pleasure in the rhythm of a song, or even the rows of an orchard. Of course, too much repetition can also backfire. David Silverstein describes what poetic repetition is and why it works.
TED-Ed: The Science of Symmetry
When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is “a transformation that leaves an object unchanged.” Huh? Colm Kelleher unpacks this abstract term and explains how animals' distinct symmetries can tell us more about them -- and ourselves.
TED-Ed: Can You Solve the Egg Drop Riddle?
The city has just opened its one-of-a-kind Faberge Egg Museum, with a single egg displayed on each floor of a 100-story building -- and the world’s most notorious jewel thief already has her eyes on the prize. Can you help the thief formulate a plan that will drop the most expensive egg she can get safely into her waiting truck? Yossi Elran shows how.
Unit Prices With Customary Unit Conversions
Improve your math knowledge with free questions in "Unit prices with customary unit conversions" and thousands of other math skills.
Multiply 12 By Numbers Up To 12
Improve your math knowledge with free questions in "Multiply 12 by numbers up to 12" and thousands of other math skills.
Count Money - Pennies, Nickels, And Dimes Only
Improve your math knowledge with free questions in "Count money - pennies, nickels, and dimes only" and thousands of other math skills.
Evaluate Variable Expressions
Improve your math knowledge with free questions in "Evaluate variable expressions" and thousands of other math skills.