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==Concept #2. Measurements in a kite==
 
==Concept #2. Measurements in a kite==
 
===Learning objectives===
 
===Learning objectives===
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# A kite has two pairs of congruent sides.
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# Its diagnols intersect at right angles.
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# The sum of its four sides would be its perimetre.
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# Its area is given by the formula <math>1/2 x product of its diagnols </math>
 
===Notes for teachers===
 
===Notes for teachers===
===Activity No # ===
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===Activity No # Deriving formula for area of a kite===
 
{| style="height:10px; float:right; align:center;"
 
{| 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;">
 
|<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>
 
''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
 
|}
 
|}
*Estimated Time
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*Estimated Time : 30 minutes.
*Materials/ Resources needed
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*Materials/ Resources needed: Laptop, geogebra file, projector and a pointer.
 
*Prerequisites/Instructions, if any
 
*Prerequisites/Instructions, if any
*Multimedia resources
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# They should know a kite and its properties.
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# The students should know the concept of an area.
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# They should know the formula to find the area of a triangle.
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*Multimedia resources: Laptop
 
*Website interactives/ links/ / Geogebra Applets
 
*Website interactives/ links/ / Geogebra Applets
*Process/ Developmental Questions
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*Process:
*Evaluation
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# The teacher can project the geogebra file on kite.
*Question Corner
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# Show them that a kite is made of two isosceles traingles.
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# Sum of areas of these two triangles would be the area of the kite.
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*Developmental Questions
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# What is a kite /
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# What are the properties of a kite.
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# What other figures can you see in a kite ?
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# What types of triangles are these ?
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# Identify the two isosceles triangles ?
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# What is the formula to find the area of a triangle ?
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*Evaluation:
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# Choosing which two traingles out of the 8 visible types would be easy to deduce the area of kite ?
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*Question Corner:
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# Recall the two formulae that you know to find the area of a triangle.
    
===Activity No # ===
 
===Activity No # ===
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