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Brainopia game station Puzzle Peaks Little Steps Realm · Ages 2–3
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Early Learning · Ages 3-5 - name the object first, then talk about its group

Which One Belongs?

Now playing: Starter Try it first · 5 rounds

Look at the picture clue, then choose the group where it belongs.
Focus skills Early Learning Categorization Reasoning Vocabulary Sorting

Which One Belongs?

1 of 5

  1. Round 1
  2. Round 2
  3. Round 3
  4. Round 4
  5. Round 5
Where does this picture belong? a red apple

Name the picture first, then choose its group.

Coach this round

Coach category words.

Try saying
Ask, "What is it? What group could it go with?" before tapping.
Look for
Your child naming the object and connecting it to a familiar group.
Next tiny step
Find two nearby things that belong in the same group.

After this level

Try Growing Groups. Members · 8 planned rounds Eight flexible-category rounds that ask children to use more than one clue.
Open member level
Play another small challenge

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

Sorting · Free Color Sort Picnic

Sort familiar picnic objects into red, blue, and yellow groups.

Play next Sorting · Free Day and Night Sort

Sort familiar activities and sky clues into day or night.

Play next Sorting · Free Nature Sort

Sort five clear nature clues as living or not living and talk about the evidence. There is no timer, penalty, advertising, or competitive score.

Play next
Level roadmap

Starter rounds introduce the game. Growing levels add member practice, Challenge adds premium depth, and Adventure adds the longest ready path when available.

  1. Level 1 · Starter Starter

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

    Five short rounds ready for the public v1 Starter experience.

    Ready to tryFree Starter
    5 planned rounds Current level
  2. Level 2 · Growing Growing Groups

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

    Eight flexible-category rounds that ask children to use more than one clue.

    Ready to tryMembers
    8 planned rounds Play level
  3. Level 3 · Challenge Which One Belongs?: Challenge Categories

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

    Sort picture clues into more specific groups with extra category distractors.

    Ready to tryPremium
    12 planned rounds Play level
  4. Level 4 · Adventure Which One Belongs?: Adventure Groups

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

    Use object clues and category meaning across a longer sorting trail.

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

Try a two-pile sort.

  1. GatherChoose four safe objects or picture cards.
  2. SortMake two groups, like big/small or inside/outside.
  3. TellAsk why each object belongs in its group.
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