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RatioRealm — a ratio workshop: kids mixing red and blue tokens, holding two-color ratio bars, with a map scale and a proportional line graph, no numbers

RatioRealm

Ratios compare two amounts — and once you can scale a ratio, you can cook, read maps, and reason about percents. Build ratios by hand, then meet the guides who each teach one piece of proportional thinking.

Ratio Studio Scale Workshop
Level 1

Start here

Ratio Studio Scale a ratio to a target on a live double number line + ratio table, and mark part-of-a-whole percents. Scale Workshop Scale a recipe, a map distance, or a blueprint measurement up or down to hit the target. Graph the Ratio Plot equivalent ratios and watch them line up through the origin — the unit rate is the slope. Ratio Duel A head-to-head kit round for 2–4 players — one device or an online room by code. Highest first-try score wins.
Brain Break Take a quiet moment between rounds — a fun teaser or a short breather. Brain breaks help you remember what you learn.

All activities

Build & reason

Ratio Studio Scale a ratio on a double number line + ratio table, and mark part-of-a-whole percents. Scale Workshop Scale a recipe, a map distance, or a blueprint up or down to hit the target. Relative Reasoning Which mix is stronger? Judge the share, not the size — the bigger bar isn’t always stronger. Graph the Ratio Plot equivalent ratios through the origin — the unit rate is the slope. Then spot a look-alike with a base fee.

Practice & play

Ratio Duel A head-to-head kit round for 2–4 players; take turns on one device or join a friend by room code. No chat, no accounts. Mixed Practice Shuffles questions from the kits you’ve played, brought back when they’re ready to review — great for making it stick.

Practice the concepts

16 kits from an intro to ratios up to advanced synthesis — a short round with a hint whenever you get stuck.

All 16 kits
Kit 1: Introduction to Ratios Ratios · Grades 5–6 · 25 questions Kit 2: Equivalent Ratios Ratios · Grades 5–6 · 25 questions Kit 3: Rates and Unit Rates Rates & unit rates · Grades 5–6 · 25 questions Kit 4: Proportions and Cross-Multiplication Proportions · Grades 6–7 · 25 questions Kit 5: Percentage Basics Percents · Grades 6–7 · 25 questions Kit 6: Percentage Applications Percents · Grades 6–7 · 25 questions Kit 7: Scale Drawings and Maps Scale · Grades 6–7 · 25 questions Kit 8: Proportional Reasoning in Real Life Proportions · Grades 7–8 · 25 questions Kit 9: Foundational Concepts Review Ratios · Grades 5–6 · 25 questions Kit 10: Applied Problem Solving Ratios · Grades 6–7 · 25 questions Kit 11: Critical Analysis & Evaluation Ratios · Grades 6–7 · 25 questions Kit 12: Advanced Integration & Synthesis Ratios · Grades 7–8 · 25 questions Kit 13: Cross-Topic Connections Rates & unit rates · Grades 5–6 · 25 questions Kit 14: Real-World Applications Rates & unit rates · Grades 6–7 · 25 questions Kit 15: Misconceptions & Reasoning Rates & unit rates · Grades 6–7 · 25 questions Kit 16: Advanced Synthesis Rates & unit rates · Grades 7–8 · 25 questions

For grown-ups — progress report →A private, on-device snapshot mapped to the skill areas practiced. Export a CSV or print — nothing that names you leaves this device.

Cast, stories & more

More ways to play

Would you rather? Quiz Arena Ratio Run Confidence Ledger Write your own ratio problem Catch-up in the lane

Same idea, another world

Something you practice here shows up somewhere else too — that's real learning that travels.

A ratio is the same equal-parts idea you use with fractions. The shared idea: proportional reasoning — a ratio is a part compared to a whole Try FractionForge → A unit rate that stays the same is exactly the constant rate a linear function grows by. The shared idea: a constant rate — a fixed ratio is the same as the constant rate of change in a linear function (y = kx) Try FunctionForge → The fixed ratio you scale here is exactly how voltage and current stay in proportion through a resistor (Ohm’s law). The shared idea: a constant ratio (y = kx) — a fixed ratio is the same constant that ties voltage to current in Ohm’s law (V = I·R) Try CircuitForge →
RatioRealm mascot

Meet the cast — the characters who teach this

Each one stands for an idea you’ll practice. Tap a character to read their illustrated story and hear their audio drama.

Ensemble stories — the cast together

Explore all the stories →

What next? Pick a door

Chosen from what this app is about. What you open is remembered on this device only.

📚 Books for RatioRealm

Read the story, print a workbook, or color the cast — free PDFs to read offline or print at home.

Browse all books →

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