Changes

==Concept #7 ARC==

==Concept #7 ARC==

[[File:arc.jpg|200px|right]]

[[File:arc.jpg|200px|right]]

===Learning objectives===

===Learning objectives===

*The students should understand that an arc is a part of a circle included between two distinct  points on the circumference of the circle.<br>

# The students learn that an arc is a part of a circle included between two distinct  points on the circumference of the circle.

*The students should understand the two types of arcs -minor arc and major arc. The larger arc is called a major arc and the smaller one is called minor arc.

# The students learn that the the larger arc is called major arc and the smaller one is called minor arc.

===Notes for teachers===

===Notes for teachers===

Explain the concept of arc by drawing a circle and two points on its circumference. The part of the circumference within the two points in either directions are called its arcs. Show the labelling of arcs.

# Explain the concept of arc by drawing a circle and two points on its circumference. The part of the circumference within the two points in either directions are called its arcs.  

===Activity No # 1===

# Show the labelling of arcs.  

 

===Activity No # Arc===

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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>

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*'''Estimated Time''' :  

*Estimated Time : 10 minutes

*Materials/ Resources needed

*Materials/ Resources needed : White paper, pencil, compass, scale and colour pencils.

 

*'''Prerequisites/Instructions, if any'''

 

 

 

'''Instructions to the students:'''<br>

Instructions to the students:<br>

*Multimedia resources  

*Multimedia resources  

*Website interactives/ links/ / Geogebra Applets

*Website interactives/ links/ / Geogebra Applets

 

*Process/ Developmental Questions

*'''Process/ Developmental Questions'''

*Evaluation

*'''Evaluation'''

*Question Corner:

 

# What is the longest arc of a circle called?<br>

*'''Question Corner'''

# What are the arcs called when both major and minor arcs are of same size?

What is the longest arc of a circle which forms the circle called?<br>

What are the arcs called when both major and minor arcs are of same size?<br>

===Activity No # ===

===Activity No # ===