Before you start
Think it through on the balance
Most popular
Balance Scale Solve for x by doing the same move to both sides — the scale stays balanced until x is alone. 
Algebra Tiles Cancel zero-pairs and combine like terms with color-coded tiles, then name the simplified expression. 
Spot the Slip One step in a worked solution breaks a rule. Find it, then say why — the fastest way to stop making the mistake. 
Equation Duel A head-to-head kit round for 2–4 players — one device or an online room by code. Highest first-try score wins. All activities
Do algebra by hand
Balance Scale The same move to both sides — the scale stays balanced until x is alone. Algebra Tiles Cancel zero-pairs and combine like terms with color-coded tiles. Area Model See distributing as area — split a rectangle so the width reaches every term. Sign Flip Divide an inequality and predict the solution — divide by a negative and the sign flips. Spot the Slip Find the step that breaks a rule, then say why — stop making the mistake yourself.
Play & explore
Equation Duel 2–4 players take turns on one device or join a friend by room code. Same questions; highest first-try score wins. Equation Odyssey A map through all 16 kits, from writing expressions up to systems. Clear each stop, then move on. Mixed Practice Shuffles questions from the kits you’ve played, brought back when they’re ready to review.
Practice the concepts
All 16 kits
Kit 1: Writing & Evaluating Expressions Kit 2: Order of Operations (PEMDAS) Kit 3: One-Step Equations (Addition & Subtraction) Kit 4: One-Step Equations (Multiplication & Division) Kit 5: Two-Step Equations Kit 6: Inequalities on a Number Line Kit 7: Distributive Property & Combining Like Terms Kit 8: Multi-Step Equations Kit 9: Systems of Equations Kit 10: Equation Word Problems Kit 11: Critical Analysis & Evaluation Kit 12: Integration & Review Kit 13: Cross-Topic Connections Kit 14: Real-World Applications Kit 15: Misconceptions & Reasoning Kit 16: Advanced Synthesis
For grown-ups — progress report →
More ways to play
Same idea, another world
😄 Brain break
Meet the cast — the characters who teach this
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Lever Maintaining balance — do the same thing to both sides -
Solo Isolating the variable — moving everything else away from x -
Undo Inverse operations — addition ↔ subtraction, multiplication ↔ division -
Spread Distribution — multiplying across parentheses -
Flipper The sign-flip in inequalities when multiplying/dividing by a negative -
Corral Combining like terms — you can only add or subtract terms of the same kind; gather the like ones together -
Leaven Exponents — repeated multiplication; the small raised number counts how many times -
Marshal Order of operations — the agreed sequence for working an expression (PEMDAS) -
Prise Factoring — find the part two or more terms share and pull it out front -
Stead Substitution — put a known value in place of a variable, then simplify
Ensemble stories — the cast together