Difference between revisions of "Circle as a shape"
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| + | A circle is the set of all points in the plane that are a fixed distance from a fixed point. | ||
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===Objectives=== | ===Objectives=== | ||
| − | + | Understanding circle as a shape | |
===Estimated Time=== | ===Estimated Time=== | ||
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* Digital : Computer, geogebra application, projector. | * Digital : Computer, geogebra application, projector. | ||
* Non digital : Worksheet and pencil | * Non digital : Worksheet and pencil | ||
| − | * Geogebra files : Introduction to circles. | + | * Geogebra files : [https://ggbm.at/gfhrfrrc Introduction to circles.ggb] |
| + | {{Geogebra|gfhrfrrc}} | ||
===Process (How to do the activity)=== | ===Process (How to do the activity)=== | ||
| Line 28: | Line 31: | ||
# How do you name a circle ? | # How do you name a circle ? | ||
# Can you draw a circle without knowing the radius ? | # Can you draw a circle without knowing the radius ? | ||
| + | |||
| + | === Worksheet === | ||
| + | [[:File:Circles-introduction Worksheet.pdf]] | ||
| + | [[Category:Circles]] | ||
Latest revision as of 01:23, 30 October 2021
A circle is the set of all points in the plane that are a fixed distance from a fixed point.
Objectives
Understanding circle as a shape
Estimated Time
30 minutes
Prerequisites/Instructions, prior preparations, if any
Prior knowledge of point, lines, angles, polygons
Materials/ Resources needed
- Digital : Computer, geogebra application, projector.
- Non digital : Worksheet and pencil
- Geogebra files : Introduction to circles.ggb
Download this geogebra file from this link.
Process (How to do the activity)
- Draw circle with ‘circle with center and point’ or use the slider
- What do you notice, how is the circle formed.
- Which point is the centre of the circle ?
- Plotting points on the circle, connect these points to the centre of the circle.
- What can you say about the segment lengths?
- Measure the segment lengths to show they are equal.
- Establish center of the circle’ and ‘radius’
- Differentiate between circle and region enclosed by a circle.
- Evaluation:
- By what parameter is the size of a circle defined ?
- Bigger the radius, _____________
- How do you name a circle ?
- Can you draw a circle without knowing the radius ?