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Equality Explorer: Basics

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About Equality Explorer: Basics

Explore what it means for a mathematical statement to be balanced or unbalanced by interacting with objects on a balance. Find all the ways to balance cats and dogs or apples and oranges.

How to play Equality Explorer: Basics

Everything is hands-on: drag, click and experiment — the simulation reacts instantly. Explore what it means for a mathematical statement to be balanced or unbalanced by interacting with objects on a balance.

Questions & answers

What is Equality Explorer: Basics?
Equality Explorer: Basics is a free interactive simulation from PhET Interactive Simulations (University of Colorado Boulder) that you can play right in your browser on crumble.lol — no downloads and no sign-up. Explore what it means for a mathematical statement to be balanced or unbalanced by interacting with objects on a balance. Find all the ways to balance cats and dogs or apples and oranges.
What can kids learn from Equality Explorer: Basics?
It helps kids explore: use a balance model to solve an equation for an unknown, and justify your strategies for solving use proportional reasoning to determine the value of a single object.
What age is Equality Explorer: Basics good for?
It is designed for elementary school (roughly ages 5–10) up to middle school (roughly ages 10–14), and curious kids outside that range can absolutely enjoy poking around it too.
Is Equality Explorer: Basics free to play?
Yes — Equality Explorer: Basics is completely free on crumble.lol and runs fully in your browser on computers and tablets.

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