Fun Math Kids

Smart Starters · Ages 8 to 10

All Smart Starters games

Recipe Scale Sim

Scale recipe ingredients up by a whole-number factor at a chef academy, using ratio to set each amount, for ages 8 to 10.

SimulationRatio scaling recipes~8 min per level4 levelsAll devices
  • Free · no account required
  • No sign-up
  • +10 XP per level
  • 4 levels
  • Plays on all devices
  • Grade-by-grade

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The learning journey

Every activity is one step. Here is where this one fits.

  1. Play(you are here)Learn the idea in a game
  2. PractiseLock it in on paper
  3. ReviewCome back and keep it sharp
  4. MasterTake on a harder challenge
  5. AchieveEarn a certificate

About Recipe Scale Sim

Recipe Scale Sim puts children in a master chef academy kitchen where they scale a recipe up by a whole-number factor. Using plus and minus at each ingredient station, learners set every amount to its scaled value, turning ratio and multiplicative reasoning into a hands-on, real-world cooking task.

Chosen by the skills this activity practises.

A hand for grown-ups

Before you start
Something you can cut or fold helps enormously — paper, fruit, a sandwich. A half you can see beats a half you are told about.
While they work
Keep coming back to "equal parts". A shape split into unequal bits is the classic fractions trap.
Afterwards
Fold a piece of paper into halves, then quarters, together. Watching the pieces double is a lightbulb moment for many children.
Watch out for
Thinking a bigger bottom number means a bigger fraction (that 1/8 > 1/4). Cutting a real thing into 8 vs 4 pieces settles it fast.
Away from the screen
Cut food into equal parts at mealtimes. Fold paper. Talk about "half" and "quarter" of everyday things.

How to play

  1. A question appears on screen

    A maths question is shown in large text at the centre of the play area. A timer bar begins counting down from 120 seconds.

  2. Choose the correct answer

    Answer options are shown as large buttons. Tap or click the correct option. Any input method works — touch, mouse or keyboard.

  3. Build your streak

    Each consecutive correct answer increases your streak. A longer streak lights up the flame icon and adds a bonus multiplier to the XP you earn for the level.

  4. Finish the level

    Each level has 4 questions. Complete them to earn the full level reward (+10 XP, plus up to +10 XP for a perfect run). Progress is saved locally and shown on the Parent Dashboard.

🎓 Curriculum

Curriculum alignment

Mapped to national curriculum frameworks so teachers and parents can match practice to school standards.

  • United StatesCommon Core State Standards for Mathematics · ratio, scaling, multiplicationAligned to ratio, scaling, multiplication number and operations objectives.
  • EnglandNational Curriculum in England: mathematics · ratio, scaling, multiplicationAligned to ratio, scaling, multiplication number and operations objectives.
  • AustraliaAustralian Curriculum: Mathematics (Version 9.0) · ratio, scaling, multiplicationAligned to ratio, scaling, multiplication number and operations objectives.
  • Canada (Ontario)The Ontario Curriculum, Grades 1–8: Mathematics (2020) · ratio, scaling, multiplicationAligned to ratio, scaling, multiplication number and operations objectives.
❓ FAQ

Common questions from parents & teachers

Everything you need to know before your child starts playing.

  • It is designed for children aged 8 to 10 (grade 4 and grade 5).

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