WBSED - 7 - Maths :: Construction of Quadrilaterals

Go To: WBSED-Mathematics-Grade 7

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[Contributor - Preethi Saravanakumar]

Objective: To teach the students about different kinds of quadrilaterals; how to measure and and how to construct

Subtopics to be covered:

Construct quadrilaterals with given measurements using pencil, compass and scale
Learn to make angles using compass.
Construct a quadrilateral using the given measurements of sides and angles
Learn to construct a Rhombus and Parallelogram using given measurements
Make a Square Area using the the measurement of the polygon side
Make a Rectangle Area using the the measurements of the polygon sides

Learning Outcome:

Students can draw different kinds of quadrilaterals using measurements and angles.
They know to measure angles and use the compass effectively.

[Contributor - Rini Jose]

Hindi Medium

[Contributor - Kripa S]

https://www.youtube.com/watch?v=6eYf-zE3eOQ (properties of quadrilaterals)

[Contributor - Kripa S]

http://www.skwirk.com/content/upload/images/Secondary/NSW/year_8/maths/solids_angles/tp3/ch3/tp3ch3_image3.jpg (properties of quadrilaterals)

[Contributor - Kripa S]

1. Take 2 pens or sticks on one length and 2 more of a different length. Make a rectangle using these 4 sticks. Push two opposite side sticks a little changing its angle from 90 deg. Is it still a rectangle or is it a parallelogram? Push the newly formed shape to the other side to make a different angle. Would it then be called a rectangle? Share your views.

2. Make two teams. One team will draw a quadrilateral on the board, and other team has to identify which one it is. Play this for 5-6 rounds. The team that scores more points wins.

[Contributor - Sneha Choudhury]

https://drive.google.com/open?id=0BzNF2YyqQxJ-YmVHSGI3NU1LcE0 (Worksheet 1)

https://drive.google.com/open?id=0BzNF2YyqQxJ-QVFwWXFvdjBRVzg (Worksheet 2)

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