Shapes Around Us
CBSE · Class 4 · Mathematics
Summary of Shapes Around Us for CBSE Class 4 Mathematics. Key concepts, important points, and chapter overview.
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Overview
This chapter explores the fascinating world of shapes that surround us in our daily life. From the monuments in Delhi like India Gate and Qutub Minar to the objects in our classroom, we learn to identify, understand, and work with different 2D and 3D shapes. We discover how shapes are used in buildi
Key Concepts
Three
Three-dimensional shapes have length, breadth, and height. Key 3D shapes include cubes, cuboids, prisms, pyramids, cylinders, cones, and spheres. Each
A net is the flat pattern
A net is the flat pattern that can be folded to create a 3D shape. When we unfold a box completely, we get its net. Different 3D shapes have specific
An angle is formed when two
An angle is formed when two lines meet at a point. There are three main types: Right angles (exactly like the corner of a book or window), Acute angle
Two
Two-dimensional shapes are flat and have only length and breadth. Common 2D shapes include triangles, squares, rectangles, circles, and polygons. Each
A circle is a round shape
A circle is a round shape where all points are equally distant from the center. The radius is the distance from center to the edge, and the diameter i
Learning Objectives
- Identify and classify 2D and 3D shapes in our surroundings
- Understand the properties of different shapes including faces, edges, and vertices
- Recognize and measure different types of angles (right, acute, and obtuse)
- Create models of buildings and monuments using blocks and other materials
- Work with nets to understand how 3D shapes are formed
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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