Fun with Shapes begins with Amma’s dot rangoli and opened-up cardboard boxes, showing how flat 2D faces—rectangles, squares, triangles and circles—form the surfaces of 3D objects. Students explore straight and curved lines, fold paper to test square corners (right angles), compare opposite sides of rectangles and squares, and build creative figures using tangrams and dot grids.
What Class 3 Mathematics Chapter 5 Covers
2D Shapes from 3D Boxes: Tracing and opening cardboard boxes to see their rectangular and square faces
Properties of Rectangles and Squares: Counting 4 sides and 4 square corners, and comparing opposite vs all four sides
Triangles and Square Corners: Folding paper to make a square-corner tester and checking corners around the classroom
Circles, Tangrams and Dot Grids: Tracing circles, folding to find the centre, and creating border patterns with straight and curved lines
Exercises in Chapter 5
- Let us Do (Pages 44–52): Complete Amma’s rangoli, trace faces of boxes and build shapes with matchsticks and strips.
- Let us Explore & Let us Discuss (Pages 53–63): Test square corners with folded paper, count triangles in puzzles, explore circles and solve 5-piece tangrams.
Read Class 3 Mathematics Chapter 5 Online
More Chapters
- Previous: Chapter 4: Vacation with My Nani Maa
- Next: Chapter 6: House of Hundreds – I
- Hindi medium: Class 3 Maths Chapter 5 PDF in Hindi (Ganit Mela)
- All Mathematics chapters and the other Class 3 books: Class 3 NCERT books 2026-27
- All Class 1 to 12 NCERT Textbooks: NCERT Books PDF (Class 1–12)
- Every book chapter by chapter: NCERT chapter wise PDF
FAQ
Is every square also a rectangle?
Yes. A rectangle has 4 square corners and equal opposite sides, and a square satisfies both conditions with all 4 sides equal.
How many corners and sides does a circle have?
A circle is made of a single curved line and has 0 straight sides and 0 corners.