Math Playground
Numbers, decimals, magnitude and absolute value — math made playful.
Absolute Value: How Far Are You From Zero?
Eon's dad built a number-line game where Eon gets teleported to random spots and answers one question: how far is he from 'school' at zero? Drag to +17, then to −17, and the surprise pops out — both are exactly 17 away.
Negative Numbers Are Just… Underground (Decimals & Negatives Review)
Eon zooms into the number line to find decimals like 0.46 hiding between the whole numbers, then cracks negative numbers with a building: the ground floor is 0 and the basement parking is −1, −2. Suddenly −9 being smaller than −1 makes sense.
Decimals: The Endless Numbers Hiding Between 1 and 2
Eon's dad asks an impossible-sounding question — what do you call the place exactly between 1 and 2? — and the answer opens the door to decimals, and to the mind-bending fact that there are countless numbers hiding in any little gap.
Greater Than (>): The Same Fact, Flipped Around
1 is less than 10 — but flip it and 10 is greater than 1. Eon practices drawing the tricky sign, gets it wrong, then discovers that < and > are two ways of saying the same true thing.
Less Than (<): The Tilted Sign and the Side That Wins
Two is less than eight — but how do you write it down? Eon learns the < sign, the rule that the number on the left is always smaller, and watches his dad get a number wrong, admit it, and explain why that's a good thing.
What Is a Number, Really? It's a Place on a Line
In the first Math Playground, Eon and his dad use a number-line program his dad coded to flip how Eon sees numbers: a number isn't just a symbol you write — it's a spot that lives somewhere on a line, and the further right, the bigger.