What students learn
Variables, equality, inverse operations, one-step equations, two-step equations, negative values, and systems of equations.
Interactive algebra
Learn equations by keeping the scale balanced.
EquiliPrism turns algebra into a visual puzzle. Students use a balance scale to see why the same operation must happen on both sides of an equation.
Open the Balance LabWho it is for
Early learners can practice counting and addition. The activities adapt from grade 3 algebra through high school equation systems.
Why the model works
A balanced scale makes equality concrete: changing only one side makes it tip, while equal changes preserve balance.
How to solve an equation with the balance method
- Read the equation as two equal sides of a scale. For example, in x + 2 = 6, the unknown value and two units balance six units.
- Remove the same two units from both sides. The scale stays level, leaving x = 4.
- Check the result by substituting the value: 4 + 2 = 6. Both sides have the same value.
Practice algebra interactively
In the Balance Lab, learners drag weights, variable chests, and negative-value balloons onto a scale. Each challenge adapts to the selected grade level, progressing from visual counting to multi-step algebra and systems of equations.