Shadow Story – Class 2 Maths Chapter 4 Notes & NCERT PDF

Class 2MathematicsChapter 4NCERT book: Joyful Mathematics - Class 2

Notes and a simple summary of Chapter 4 of the NCERT Class 2 Mathematics book, with the official chapter PDF, flashcards, an MCQ quiz and an AI tutor for your doubts.

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Chapter 4: Shadow Story

Introduction

Shadow Story begins at a village fair where Nakul and his friends watch Togalu Gombeyaata, a shadow-puppet art from Karnataka in which puppets show scenes from Indian epics. The children then make animal shadows with their fingers. From shadows and tracing, the chapter moves to flat (2D) shapes — circle, rectangle, triangle and square — their straight and curved edges, corners, origami and patterns.

What's in this Chapter

  • Shadows: children talk about when we see a shadow and when it vanishes, shine a torch on objects, and notice how the size of a shadow changes when the torch moves. They think about when in the day their shadow is longest and shortest.
  • Let us Trace: trace an eraser, leaf, matchbox, sharpener and pencil colour, and find objects that have the same trace as a bottle cap or an eraser.
  • Hide and Seek: Circle and Rectangle play hide and seek. Rectangle hides behind the shoe box because "I look like the face of the shoe box". Circle can hide in a clock or a ball. Then Triangle and Square join and children suggest where they can hide.
  • Colour the Carpet: triangles red, circles green, rectangles yellow, squares blue.
  • Catch the Corner! Naveen claps while friends run around a table; anyone not at a corner is out. Children think whether this game can be played around a round table (no, a round table has no corners) and name objects with straight and curved edges.
  • Origami Fun: fold a square paper into a triangle and then into a paper dog, counting corners and edges at each step.
  • Patterns: stamping with bottle caps, erasers and coins, mehandi designs, leaf printing, letter patterns like AB BC CD and AA BB CC DD EE.
  • Kikku rabbit's tiles: 1, 4, 7 … and his mother's jumps 1, 6, 11 …; number patterns 5, 10, 15 …, 7, 14, 21 …, 1, 7, 13 ….

    • Key Ideas

  • A shadow forms when light is blocked by an object.
  • Tracing the flat face of an object gives a 2D shape.
  • Circles have curved edges and no corners; triangles have 3 straight edges and 3 corners; squares and rectangles have 4 straight edges and 4 corners.
  • Some objects have both straight and curved edges.
  • Patterns repeat or grow by a rule.

    • Activities from the Book

  • Making hand shadows of animals and doing a role-play with their sounds.
  • Playing Catch the Corner around a table.
  • Making a paper dog by folding.
  • Leaf printing and making a wall hanging from shape cut-outs (project work).

    • Words to Learn

  • Shadow (परछाई)
  • Torch (टॉर्च)
  • Trace (आकृति बनाना / रेखा खींचकर उतारना)
  • Circle (वृत्त), Triangle (त्रिभुज)
  • Square (वर्ग), Rectangle (आयत)
  • Straight edge (सीधा किनारा), Curved edge (घुमावदार किनारा)
  • Fold (मोड़ना)
  • Puppet (कठपुतली)

    • Tips for Parents & Teachers

  • Make hand shadows with a torch at home and let the child guess the animal.
  • Go outside in the morning and at noon and compare the length of the child's shadow.
  • Trace kitchen objects (a lid, a biscuit packet) on paper and name the shapes.
  • Let children share puppet shows they have seen; tell them about Togalu Gombeyaata.

    • Common Mistakes

  • Calling every four-sided shape a square — a rectangle has two long and two short sides.
  • Thinking a circle has corners.
  • Believing a shadow is always the same size — it changes with the position of the light.

    • 💡 Key Learning Points

    • ✓Understand that a shadow forms when an object blocks light, and that its size can change.
    • ✓Get 2D shapes by tracing the faces of objects.
    • ✓Identify circles, triangles, squares and rectangles around us.
    • ✓Tell straight edges from curved edges and count corners.
    • ✓Make and extend shape and number patterns.

    👨‍🏫 Teaching Tips

    • →Share information about Togalu Gombeyaata, the shadow puppetry of Karnataka, and ask children about puppet shows they have seen.
    • →Use a torch in a darkened room so children can see shadows change size.
    • →Discuss children's shadows at different times of the day.
    • →Let children trace erasers, leaves and matchboxes and name the shapes they get.
    • →Play Catch the Corner around a rectangular table and ask why it cannot be played around a round table.
    • →Ask children to find the number of edges, corners and sides of objects around them.
    • →Do the origami dog step by step, asking how many corners the paper has at each fold.

    📋 Assessment Questions

    1. Can the child explain when a shadow appears and when it vanishes?
    2. Can the child name the shape made by tracing a bottle cap (circle) or an eraser (rectangle)?
    3. Can the child count corners of a triangle, square and rectangle?
    4. Can the child sort objects into those with straight edges and those with curved edges?
    5. Can the child extend a given shape or number pattern?

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    All chapters in Joyful Mathematics - Class 2

    1. 1. A Day at the Beach
    2. 2. Shapes Around Us
    3. 3. Fun with Numbers
    4. 4. Shadow Story
    5. 5. Playing with Lines
    6. 6. Decoration for Festival
    7. 7. Rani's Gift
    8. 8. Grouping and Sharing
    9. 9. Which Season is it?
    10. 10. Fun at the Fair
    11. 11. Data Handling