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Line 1: − ===Name of the activity===+ − Brief blurb describing what the activity. If this has been borrowed from some external web site (for example, a non OER or OER site which had this idea and based on which the activity was developed) − − Line 12:
Line 9: + + + − ===Process (How to do the activity)===+ − How to do the different steps of the activity? − What kinds of questions you can ask for that activity+ − + − + − Categories: (Subject) (Topic) (Sub-concept/topic) (Class 6) (Resource format)+ − + − Example - (Mathematics) (Triangle) (Area) (Perimeter) (Class 6) (Class 8) (Geogebra) (Video)+ + + + + + + + + + + + + +
Angle sum property of a quadrilateral (view source)
Revision as of 05:48, 2 May 2019
, 05:48, 2 May 2019no edit summary
=== Objectives===
=== Objectives ===
Content objectives - what content areas
Content objectives - what content areas
===Estimated Time===
===Estimated Time===
40 minutes.
=== Prerequisites/Instructions, prior preparations, if any ===
=== Prerequisites/Instructions, prior preparations, if any ===
#The students should have the knowledge of constructing quadrilaterals.
#They should have the skill of drawing and measuring angles.
===Materials/ Resources needed===
===Materials/ Resources needed===
colour papers, scale , compass, pencil and scissors.
This activity has been taken from the website :http://mathematicsvillage.blogspot.in/search/label/Activity
What are the student follow-up activities/ questions you can give?
[[File:Quadrilateral 1.JPG|200px|link=http://karnatakaeducation.org.in/KOER/en/index.php/File:Quadrilateral_1.JPG]] [[File:qua 2.JPG|200px|link=http://karnatakaeducation.org.in/KOER/en/index.php/File:Qua_2.JPG]] [[File:qua 3.JPG|200px|link=http://karnatakaeducation.org.in/KOER/en/index.php/File:Qua_3.JPG]] [[File:qua 4.JPG|200px|link=http://karnatakaeducation.org.in/KOER/en/index.php/File:Qua_4.JPG]]
===Process (How to do the activity)===
#Draw a Quadrilateral ABCD on colour chart Sheet .
#Cut such four Quadrilaterals on four different sheets.
#Mark <A as <1 , <B as <2 , <C as <3 and <D as <4 on each quadrilateral as shown in fig .
#Arrange all four angles of quadrilateral one from each colour at one point.
#What you observe ?
#It forms a complete angle i.e 360 degrees.
#This shows that sum of all angles of quadrilateral is 360 degrees.
*Developmental Questions:
#What is a quadrilateral ?
#How many angles does a quadrilateral have ?
#What is the sum of 4 angles of the quadrilateral according to your findings.
*Evaluation:
#What would be the sum of opposite angles of a quadrilateral ?
*Question Corner:
#What can you say about the four angles in a regular quadrilateral ? Give an example for regular quadrilateral.
#Try proving this property in case of concave quadrilaterals as well.