Symmetry — methodical recommendation. Mathematics CBSE, Class 7.

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Methodical recommendation:

Theory

Number	Name	Description
Number 1.	Name Symmetry	Description Introduction to symmetry, Line symmetry.
Number 2.	Name Reflection symmetry	Description Learn the role of a mirror in mathematics.
Number 3.	Name Rotational symmetry	Description Learn rotation of an object, understand it.
Number 4.	Name Order of rotation	Description An important concept in understanding rotation symmetry.
Number 5.	Name Angle of rotation	Description An important concept in understanding rotation symmetry.

Practice Questions

Number	Name	Type	Difficulty	Marks	Description
Number 1.	Name Line of symmetry	Type 1st type - receptive	Difficulty easy	Marks 3 m.	Description Say whether there is symmetry or no.
Number 2.	Name Number of lines	Type 2nd type - interpretation	Difficulty medium	Marks 1 m.	Description Lines of symmetry.
Number 3.	Name Symmetric points	Type 1st type - receptive	Difficulty medium	Marks 2 m.	Description Symmetric points in an asymmetric image.
Number 4.	Name Axis of symmetry	Type 2nd type - interpretation	Difficulty medium	Marks 2 m.	Description Line of symmetry in the image.
Number 5.	Name Reflection symmetry of squares	Type 1st type - receptive	Difficulty hard	Marks 1 m.	Description Understand the role of mirror and select the appropriate image.
Number 6.	Name Lines on shapes	Type 2nd type - interpretation	Difficulty easy	Marks 1 m.	Description Choose the appropriate line which divides the image symmetrically.
Number 7.	Name Symmetry in aplhabets	Type 2nd type - interpretation	Difficulty easy	Marks 1 m.	Description Symmetrical English alphabets.
Number 8.	Name Select the angles	Type 1st type - receptive	Difficulty medium	Marks 1 m.	Description Understand and give correct answers.
Number 9.	Name Order of rotation - shapes	Type 3rd type - analysis	Difficulty hard	Marks 4 m.	Description Give order of rotation of the images.
Number 10.	Name Order of rotation - angle	Type 3rd type - analysis	Difficulty medium	Marks 4 m.	Description Order of rotation at different angles.
Number 11.	Name Line symmetry	Type 3rd type - analysis	Difficulty hard	Marks 5 m.	Description Understanding symmetry on a line.

Questions for Teacher Use

Number	Name	Type	Difficulty	Marks	Description
Number 1.	Name Symmetric dots	Type Other	Difficulty easy	Marks 1 m.	Description Match the dots to understand symmetry.
Number 2.	Name Sign boards - Symmetry	Type Other	Difficulty hard	Marks 5 m.	Description Symmetry in sign boards that we see in our day-to-day life.
Number 3.	Name Angle and order of rotation	Type Other	Difficulty medium	Marks 12 m.	Description Recollect and fill the table.
Number 4.	Name Geometric shapes	Type Other	Difficulty medium	Marks 1 m.	Description Symmetry in geometric shapes
Number 5.	Name Complete the other halves	Type Other	Difficulty medium	Marks 4 m.	Description Draw the other part of images and upload them.
Number 6.	Name Reflection symmetry around us	Type Other	Difficulty medium	Marks 5 m.	Description Give examples of mirror symmetry.
Number 7.	Name Symmetry around us	Type Other	Difficulty medium	Marks 5 m.	Description Say where do you find symmetry around you.

Tests

Number	Name	Recomended time:	Difficulty	Marks	Description
Number 1.	Name Training test	Recomended time: 00:20:00	Difficulty medium	Marks 6 m.	Description

Periodic assessments

Number	Name	Recomended time:	Difficulty	Marks	Description
Number 1.	Name Homework	Recomended time: 00:20:00	Difficulty medium	Marks 4 m.	Description
Number 2.	Name Homework	Recomended time: 00:20:00	Difficulty hard	Marks 12 m.	Description
Number 3.	Name Progress test	Recomended time: 00:20:00	Difficulty medium	Marks 10 m.	Description
Number 4.	Name Progress test	Recomended time: 00:00:00	Difficulty hard	Marks 16 m.	Description

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