TNSB - 5 - Maths :: Symmetry

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[Contributor - Kripa S]

Objective: Introduce symmetry, types of symmetry

Subtopics to be covered:

1. Symmetrical figures, mirror symmetry
2. Axes of symmetry, lines of symmetry
3. Rotational symmetry - 1/2, 1/3, 1/4, 1/6 turn

Learning Outcome:

1. Students can identify whether a figure is symmetric or not
2. They can find the axes of symmetry for a symmetric figure
3. They can identify symmetric figures when rotated by an angle

[Contributor - Kripa S]

http://www.textbooksonline.tn.nic.in/Books/Std05/Std05-II-MSSS-TM-1.pdf#page=5 (Tamil Medium)

[Contributor - Kripa S]

https://www.youtube.com/watch?v=KN0JT3ioI7A ( Symmetry in nature - Animation )

[Contributor - Kripa S]

http://www.onlinemathlearning.com/image-files/lines-of-symmetry.jpg (lines of symmetry)

https://upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Symmetry.png/250px-Symmetry.png (pattern)

[Contributor - Kripa S]

1. List any 4-5 things that are symmetrical in your house, locality 2. Collect some flowers, leaves that have one or many lines of symmetry and show it in class.

[Contributor - Preethi Saravana]

https://drive.google.com/open?id=0BzNF2YyqQxJ-UFd5NUl0UVdHeG8

[Contributor - Nivetha Sivaswamy]

https://drive.google.com/open?id=0BzNF2YyqQxJ-TkJvMG9LM002V3c

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