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Mathematics Class 1 - Geometrical Shapes Notes

Comprehensive study notes for Class 1 - Geometrical Shapes olympiad preparation

Geometrical Shapes

Welcome to the chapter on Geometrical Shapes for Class 1. In this chapter, you will learn about different shapes, how to recognize them, and where you can find them in your daily life. By the end of this chapter, you will be able to name and identify basic shapes around you!

Introduction

Shapes are all around us! Everything we see has a shape. Learning about shapes helps us to describe and understand the world better.

Key Shapes

  • Circle: Round shape with no corners or sides.
  • Square: Four equal sides and four corners.
  • Rectangle: Four sides and four corners. Opposite sides are equal.
  • Triangle: Three sides and three corners.
  • Oval: Looks like a stretched circle.

1. Circle

A circle is round and has no corners.
Examples: Clock, coin, wheel.

2. Square

A square has four equal sides and four corners.
Examples: Chessboard, window, handkerchief.

3. Rectangle

A rectangle has four sides. Opposite sides are equal. It has four corners.
Examples: Book, door, table top.

4. Triangle

A triangle has three sides and three corners.
Examples: Pizza slice, road sign, birthday cap.

5. Oval

An oval looks like a stretched circle.
Examples: Egg, balloon, mirror.

Shapes Around Us

  • The sun is a circle.
  • A door is a rectangle.
  • A dice is a square on each side.
  • A slice of watermelon is a triangle.

Fun Activity: Shape Hunt!

Look around your house or classroom. Can you find objects that are circles, squares, rectangles, triangles, or ovals? Make a list or draw them!

Summary

  • Shapes help us describe things around us.
  • Common shapes are circle, square, rectangle, triangle, and oval.
  • We see these shapes everywhere in our daily life.

Practice Questions

  1. How many sides does a triangle have?
  2. Name a round shape with no corners.
  3. Which shape is like a stretched circle?
  4. Give two examples of objects that are rectangles.
  5. How many corners does a square have?

Challenge Yourself

  • Draw one object for each shape you learned.
  • Find and count all the rectangles in your classroom.

Did You Know?

  • A football field is shaped like a rectangle!
  • The face of a clock is a circle.

Glossary

  • Shape: The form of an object.
  • Side: A straight edge of a shape.
  • Corner: The point where two sides meet.
  • Circle: A round shape with no sides or corners.
  • Triangle: A shape with three sides and three corners.

Answers to Practice Questions

  1. Three sides.
  2. Circle.
  3. Oval.
  4. Book, door.
  5. Four corners.

Keep looking for shapes around you and have fun learning!

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