Introduction to Lines and Angles — methodical recommendation. Mathematics CBSE, Class 7.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Methodical recommendation:

Theory

Number	Name	Description
1.	Introduction to lines and angles	To recall what is a line, a line segment, a ray and an angle is.
2.	Complementary angles	To learn what complementary angles are.
3.	Supplementary angles	To learn what supplementary angles are.
4.	Adjacent angles	To learn what adjacent angles are.
5.	Linear pair of angles	To learn what are linear pair of angles.
6.	Vertically opposite angles	To learn what are vertically opposite angles angles and its property.

Practice Questions

Number	Name	Type	Difficulty	Marks	Description
1.	Answer the following	1st type - receptive	easy	3 m.	An excercise to differentiate line, line segment and rays.
2.	Choose the correct answer	2nd type - interpretation	easy	1 m.	To determine whether the given pair of angles are complementary or supplementary.
3.	Fill in the blanks	1st type - receptive	easy	2 m.	To understand the concept of vertically opposite angles.
4.	Find the missing angle	2nd type - interpretation	easy	2 m.	To find the missing angle using the concept of linear pair of angles.
5.	Find the unknown adjacent angle	2nd type - interpretation	easy	2 m.	To find the unknown angle using the concept of adjacent angles.
6.	Find the complementary angles	2nd type - interpretation	medium	3 m.	To find the measures of the given complementary anlges.
7.	Find the supplementary angles	2nd type - interpretation	medium	3 m.	To find the measures of the given supplementary anlges.
8.	Find the angle	2nd type - interpretation	medium	2 m.	To find the unknown angle using the concept of adjacent angles.
9.	Determine the linear pair	2nd type - interpretation	medium	2 m.	To determine the linear pair of angles from the given pairs.
10.	Find the measure of linear pair of angles	3rd type - analysis	medium	3 m.	To find the measure of linear pairs of angles for the given condition.
11.	Choose the best answer	2nd type - interpretation	medium	3 m.	To identify and understand vertically opposite angles better.
12.	Find the value as directed	2nd type - interpretation	medium	4 m.	To find the value of the variable using the concept of vertically opposite angles.
13.	Find the value of 'x', 'y' and 'z'	3rd type - analysis	hard	4 m.	To find the value of 'x', 'y' and 'z' using the properties of related pair of angles.
14.	Find the linear angles	3rd type - analysis	hard	4 m.	To find the measure of the linear pair of angles.
15.	Find the adjacent angles	3rd type - analysis	hard	1 m.	To find the measure of the two adjacent angles for the given condition.
16.	Find the measure of complementary angles	3rd type - analysis	hard	4 m.	To find the measure of complementary angles for the given condition.
17.	Calculate the values of unknown angles	3rd type - analysis	hard	4 m.	To calculate the values of unknown angles using the concept of linear pair of angles and vertically opposite angles.

Questions for Teacher Use

Number	Name	Type	Difficulty	Marks	Description
1.	Think about it!	Other	easy	2 m.	To understand the difference between linear pair of angles and supplementary angles.
2.	Find the unknown angle	Other	medium	3 m.	To find the measure of unknown angle from the figure.
3.	Find it!	Other	medium	3 m.	Application problem based on the concept of linear pair of angles.
4.	Analyse and answer	Other	hard	4 m.	To understand the related pair of angles.

Tests

Number	Name	Recomended time:	Difficulty	Marks	Description
1.	Training test	00:15:00	medium	10 m.
2.	Training test	00:15:00	medium	10 m.

Periodic assessments

Number	Name	Recomended time:	Difficulty	Marks	Description
1.	Homework	00:20:00	hard	12 m.
2.	Homework	00:20:00	hard	11 m.
3.	Progress test	00:25:00	hard	19 m.

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