wunder betaMath Classes for Preschoolers
14 free math classes for preschoolers (Ages 3–5) on Wunder — short, fact-checked courses and lessons with narration and a quiz. Filter by age — each link is its own page, not a JavaScript toggle.
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Plus, Minus, and Equals Signs
Meet the symbols +, −, and = and learn to read and write number sentences like 3 + 2 = 5, matching them to things you can count.
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Adding and Subtracting to 20
Practice adding and subtracting numbers up to 20 — and get so quick with the small ones that you don't even need your fingers.
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What Subtraction Means
Learn what subtraction really means: taking some away and counting what's left. Act it out with snacks, toys, and things around you.
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Showing Addition and Subtraction with Pictures
Show adding and taking away with cubes, counters, and drawings, so the math in your head matches something you can actually see.
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Number Bonds
Master the pairs that make 10 and beyond — like 7 and 3 — until they pop into your head instantly. These facts unlock faster math everywhere.
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What Addition Means
Learn what adding really means: putting two groups together to find how many you have in all. Practice with real objects you can touch and count.
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Addition and Subtraction Word Problems
Solve story problems like 'six apples, two get eaten — how many are left?' using counters, drawings, and missing-number thinking, all the way up to 20.
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Numbers to 20
Count, find and order numbers all the way to twenty.
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Numbers Everywhere
One, two, three! Numbers are all around us. Let's count them!
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3D Shapes
Balls, boxes, and cones! Let's find 3D shapes all around us.
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Telling Time
Meet the clock and learn how its hands tell us the time!
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Shapes & Patterns
Find shapes and repeating patterns all around you!
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First Adding
Put groups together and count them all - that's adding!
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Count to Twenty
Count all the way from 1 to 20 with fingers, toys, and fun!
All Math courses (topic hub)
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