4th Math NCERT Chapter 8
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Topics to study from the chapter:
1. Using a Compass: Instructions on how to use a compass to draw circles and make designs like Daljeet. Encourages practice in drawing circles with a compass.
2. Find the Centre: Explains how to find the center of a circle by folding it and locating where lines cross. Encourages hands-on activities to understand circle centers.
3. Balancing Act: Experiment with balancing a plate on a finger to understand balance points and centers.
4. Make Your Own Top: Instructions on creating and spinning a top, exploring concepts of balance and motion.
5. Making a Circle with a Rope: Activity involving using ropes to create different circles, measure radii, and observe the relationship between rope length and circle size.
6. Round Bangle: Uses bangles to trace circles, encouraging exploration of different tools to create circles.
7. Games with Circles: Engagement in various circle-related games, encouraging critical thinking about the use of circles in games and activities.
These topics cover practical activities, concepts, and games related to circles and provide a hands-on approach to learning geometry effectively.
How can you use a compass to make a circle?
Open the compass, press the tip on the paper, move the pencil around without moving the tip to get a circle.
Can a circle have more than one centre?
No, a circle cannot have more than one centre.
How can you find the centre of a circle?
Draw two creased lines through the circle, and the point where they cross is the centre of the circle.
Why did Naina get a distorted circle drawing when using a compass?
Naina may have got a distorted circle drawing due to a loose screw in the compass.
What is the purpose of exercising making freehand circles and using different methods to draw circles?
The purpose is to give children opportunities to understand the shape and size of circles, practice measuring radii, and develop intuition about circles.
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