Odd One Out — Shapes

Joyful Mathematics 2 — Shapes Around Us. Grouping shapes by sides and corners in Shapes Around Us is the same skill as odd-one-out.

• In odd one out, three or four items are alike and one is different.
• For shapes, look at sides, corners, and roundness.
• Say why the odd one is different.

Verbal: Find the shape that breaks the rule — count sides and corners, not colour or size.

Symbolic: Triangle = 3 sides; square = 4; circle = 0 corners. Rule → pick the different shape.

Level 1 — Shape clues

Level 1 — Count sides

Triangle = 3, Square = 4, Pentagon = 5.

Level 2 — Same colour trick

Shapes may look alike in colour — still check shape.

Level 2 — Method

1. Name each shape 2) Find the rule 3) Pick the breaker

Indian real life

Connect this idea to your daily routine at home, school, or the local market in India.

Odd one out: circle, circle, square, circle

Step 1 — Three circles, one square
Step 2 — Rule: all should be circles
Step 3 — **Square** has straight sides; circles are round
Answer: square

• Odd one: triangle, triangle, triangle, circle
• Why is a rectangle odd among three squares?
• Draw two shapes that belong together and one odd.

Stretch: Make a set of four shapes where the odd one is a pentagon among squares — explain your rule.

Revision tip: Draw shapes on cards — sort by side count before picking the odd one.

Open the Practice tab for graded questions on Odd One Out — Shapes.

• Use the platform-native live simulation or PhET-style tool for this topic (number line, Venn, physics playground, molecule builder, sensor dashboard, etc.).
• Mirror / body / home activity: physically do the concept (count objects, measure, role-play) and photograph or describe for portfolio.
• Voice or text reflection with AI Mentor: explain the concept to a younger student or family member.

• "Explain this concept to a Class 6 student using one real example from an Indian home, school, market, or festival."
• "What is one common mistake students make here, and how would you catch yourself making it?"
• Stretch: "How does this connect to coding, robotics, money, health, environment, or a future career?"

• Complete the core practice + one extension activity (photo, table, short reflection, or mini-project) for base XP + topic badge.
• 5-7 day streak or family discussion note = multiplier + visible artifact in parent/principal dashboard.
• Best real-world application stories (anonymised) featured on class or national leaderboard.

• One hands-on project or measurement using the Drishti kit or household items that makes the concept physical.
• Direct link to at least one Future Skill track (Money Management, Green Tech, Cyber Defenders, Micro-Entrepreneurship, AI Mastery, Sustainable Living, Personality Development).
• Coding extension where relevant (simple script, simulation, or data logging).

This material emphasises experiential "learning by doing", competency (apply/create/analyse), vocational exposure, critical thinking, and multidisciplinary connections. Designed to feed live worlds, AI Mentor (with memory), gamification, robotics, parent analytics, and future skills — not just exam prep.

Portfolio Evidence Idea: Your photo/table/reflection/project + one sentence on "How this helps me in real life or a possible future path."

Open the Practice tab for aligned questions (easy/medium/hard + case-based) with full AI scaffolding.

See curriculum for cross-links and the full future-skills/robotics chapters.