1,040
edits
Changes
Jump to navigation
Jump to search
Line 46:
Line 46: − + − + − + − + Line 58:
Line 58: − + − Line 69:
Line 68: − Identify the centre.+ − *Evaluation+ − + − #Where does the centre of the circle lie? (inside/outside) − *Question Corner − Is there a circle with 3/4/5 centres? − − ===Activity No # 2 === − {| style="height:10px; float:right; align:center;" − |<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;"> − ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> − |} − *Estimated Time − *Materials/ Resources needed − *Prerequisites/Instructions, if any − *Multimedia resources − *Website interactives/ links/ / Geogebra Applets − *Process/ Developmental Questions + + +
→Concept #1 CIRCLE CENTRE
''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.
===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 ===
''[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>
*Website interactives/ links/ / Geogebra Applets
*Website interactives/ links/ / Geogebra Applets
*Process/ Developmental Questions
*Process/ Developmental Questions
# How to mark the centre of a circle ?
# How do you label it ?
#How many centres does a circle has?<br>
# How do you draw a circle ?
*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 ?
==Concept #2 Radius and Diameter==
==Concept #2 Radius and Diameter==