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| ''The fixed point in the circle is called centre.'' | | ''The fixed point in the circle is called centre.'' |
| ===Learning objectives=== | | ===Learning objectives=== |
− | #Define circle | + | # The students should understand that centre is that fixed point in the circle from which all points are at equal distance. |
− | #give examples for circles | + | # They should be able to give examples for circles |
− | #Locate centre for the given circle. | + | # They should understand that a circle is drawn using centre as a reference point. |
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| ===Notes for teachers=== | | ===Notes for teachers=== |
− | Define circle and centre with the help of a diagram | + | Define circle and centre with the help of a diagram. |
| | | |
| ===Activity No # 1 To locate centres for circles === | | ===Activity No # 1 To locate centres for circles === |
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| ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> | | ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> |
| |} | | |} |
− | *Estimated Time | + | *Estimated Time : 20 minutes |
− | 20 minutes | |
| *Materials/ Resources needed | | *Materials/ Resources needed |
| For the teacher: chalk piece, geometry set.<br> | | For the teacher: chalk piece, geometry set.<br> |
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| *Website interactives/ links/ / Geogebra Applets | | *Website interactives/ links/ / Geogebra Applets |
| *Process/ Developmental Questions | | *Process/ Developmental Questions |
− | Identify the centre.
| + | # How to mark the centre of a circle ? |
− | *Evaluation
| + | # How do you label it ? |
− | #How many centres does a circle has?<br> | + | # How do you draw a circle ? |
− | #Where does the centre of the circle lie? (inside/outside)
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− | *Question Corner
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− | Is there a circle with 3/4/5 centres?
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− | | |
− | ===Activity No # 2 ===
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− | {| style="height:10px; float:right; align:center;"
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− | |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
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− | ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
| |
− | |}
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− | *Estimated Time
| |
− | *Materials/ Resources needed
| |
− | *Prerequisites/Instructions, if any
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− | *Multimedia resources
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− | *Website interactives/ links/ / Geogebra Applets
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− | *Process/ Developmental Questions
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| *Evaluation | | *Evaluation |
| + | # How many centres does a circle have?<br> |
| + | # Where does the centre of the circle lie? (inside/outside) |
| *Question Corner | | *Question Corner |
| + | # Can a circle be drawn without locating its centre ? |
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| ==Concept #2 Radius and Diameter== | | ==Concept #2 Radius and Diameter== |