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Mathematics · Ages 2-4

Big or Small?

Now playing: Starter Try it first · 5 rounds

Look at the highlighted object and decide whether it is big or small.
Focus skills Mathematics Size Comparison Measurement Vocabulary Observation

A little at a time

Choose a small stage

15 short stages to play now. The full stage path is ready to explore.

Saved stage progress is unavailable for this session. Older full-track rounds do not automatically complete these new stages.

Explore the 15-stage path
  1. 1
    Starter · Free Starter

    Find the bigger one

    Compare two copies of the same object and choose the bigger one.

    6 short rounds Play stage 1: Find the bigger one
  2. 2
    Starter · Free Starter

    Find the smaller one

    Compare two copies and choose the smaller one, on either side.

    6 short rounds Play stage 2: Find the smaller one
  3. 3
    Starter · Free Starter

    Match this size

    Compare three choices with a reference and find the same size.

    6 short rounds Play stage 3: Match this size
  4. 4
    Growing · Members

    Find the biggest

    Compare three objects and find the biggest.

    6 short rounds Check access 4: Find the biggest
  5. 5
    Growing · Members

    Find the smallest

    Compare three objects and find the smallest.

    6 short rounds Check access 5: Find the smallest
  6. 6
    Growing · Members

    Small to big

    Place three objects in order from small to big.

    6 short rounds Check access 6: Small to big
  7. 7
    Challenge · Premium

    Fix the size line

    Repair one misplaced object in a size order.

    6 short rounds Check access 7: Fix the size line
  8. 8
    Challenge · Premium

    Compare closer sizes

    Notice smaller differences using a shared baseline.

    6 short rounds Check access 8: Compare closer sizes
  9. 9
    Challenge · Premium

    Size can be relative

    Compare the same object against a smaller and a larger neighbor.

    6 short rounds Check access 9: Size can be relative
  10. 10
    Adventure · Premium

    Build a size sequence

    Complete a longer size order with missing positions.

    6 short rounds Check access 10: Build a size sequence
  11. 11
    Adventure · Premium

    Match a size plan

    Follow a reference to arrange several sized objects.

    6 short rounds Check access 11: Match a size plan
  12. 12
    Adventure · Premium

    Size explorer workshop

    Mix comparisons, reference matches, ordering and repairs.

    8 short rounds Check access 12: Size explorer workshop
  13. 13
    Adventure · Premium

    Find the middle size

    Choose the object that is bigger than one choice and smaller than another.

    6 short rounds Check access 13: Find the middle size
  14. 14
    Adventure · Premium

    Fit between the anchors

    Choose a physical size that satisfies both a smaller and larger boundary.

    6 short rounds Check access 14: Fit between the anchors
  15. 15
    Adventure · Premium

    Size reasoning workshop

    Mix middle-size, between-anchor, close comparison, relative, sequence, and plan strategies.

    8 short rounds Check access 15: Size reasoning workshop

Big or Small?

1 of 5

  1. Round 1
  2. Round 2
  3. Round 3
  4. Round 4
  5. Round 5
Is this object big or small? a big teddy bear beside a smaller teddy bear

Compare its size, then choose Big or Small.

Coach this round

Coach size comparison.

Try saying
Ask, "Is this big or small compared with the other things we know?"
Look for
Your child using the visual size clue, not just naming the object.
Next tiny step
Find one big and one small object nearby and compare them.

After this level

Try Growing Big or Small. Members · 8 planned rounds Eight visual comparison rounds with bigger size clues and familiar objects.
Open member level
Play another small challenge

Stay in the same learning neighborhood, or try another launch-ready Starter game.

Math · Free Count and Share

Count small groups of picnic treats before sharing them with friendly characters.

Play next Math · Free Count the Picnic

Count one to five large picnic spots and choose the matching numeral. There is no timer, penalty, advertising, or competitive score.

Play next Math · Free Cup Count Match

Count five small groups of bright cup stickers and choose the matching number.

Play next
Original full-track rounds

These longer rounds are still available. They are separate from the short-stage path above and do not complete its stages automatically.

  1. Level 1 · Starter Starter

    A short, calm first round that introduces the game idea.

    Five short rounds already suitable for the first 1.0 launch experience.

    Ready to tryFree Starter
    5 planned rounds Current level
  2. Level 2 · Growing Growing Big or Small

    A longer member round that repeats the skill with a little more variety.

    Eight visual comparison rounds with bigger size clues and familiar objects.

    Ready to tryMembers
    8 planned rounds Play level
  3. Level 3 · Challenge Challenge Comparisons

    A deeper review path for kids who are ready for more focus and more rounds.

    Twelve comparison rounds that mix size clues and reduce the visual hand-holding.

    Ready to tryPremium
    12 planned rounds Play level
  4. Level 4 · Adventure Big or Small?: Adventure Compare

    The longest path, designed for deeper premium play and future themed-pack expansion.

    Compare size clues across a longer visual reasoning path.

    Ready to tryPremium
    20 planned rounds Play level
Continue away from the screen

Try a tiny counting round.

  1. GatherPut a few safe objects on the table.
  2. CountTouch each object once while counting out loud.
  3. ChangeAdd one or take one away and count again.
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