Changes
From Karnataka Open Educational Resources
514 bytes added
, 11:30, 15 March 2019
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| # Can a triangle be formed with a reflex angle. | | # Can a triangle be formed with a reflex angle. |
| # Measure the angles for different triangle, recognize the types of angles and conclude the type of triangle. | | # Measure the angles for different triangle, recognize the types of angles and conclude the type of triangle. |
| + | {| class="wikitable" |
| + | !Observation |
| + | !Angle 1 measure and |
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| + | its Type |
| + | !Angle 2 measure and |
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| + | its Type |
| + | !Angle 3 measure and |
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| + | its Type |
| + | !What can you say about angles? |
| + | !Type of triangle formed |
| + | |- |
| + | |Triangle 1 |
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| + | |- |
| + | |Triangle 2 |
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| + | |- |
| + | |Triangle 3 |
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| + | |} |
| * '''Evaluation at the end of the activity''' | | * '''Evaluation at the end of the activity''' |
| # Are children able to recognize the types of triangles based on the angles in a triangle. | | # Are children able to recognize the types of triangles based on the angles in a triangle. |
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| # In each of the two triangles if on angle is 90<sup>o</sup>, what will be the sum of the other two angles. What is the sum of these angles? | | # In each of the two triangles if on angle is 90<sup>o</sup>, what will be the sum of the other two angles. What is the sum of these angles? |
| # Children can record the values of the angles of a triangle in the worksheet | | # Children can record the values of the angles of a triangle in the worksheet |
− | <nowiki>--------------</nowiki>
| + | {| class="wikitable" |
| + | !Observation |
| + | !Angle 1 |
| + | !Angle 2 |
| + | !Angle 3 |
| + | !Angle 1 + Angle 2 + Angle 3 |
| + | !What can you say about sum of angles? |
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| + | |- |
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| + | |} |
| # With the file – “7c. Angle sum property of a triangle.ggb” | | # With the file – “7c. Angle sum property of a triangle.ggb” |
| # Ask students what happens when the three angles of the triangle are placed adjacent to each other. | | # Ask students what happens when the three angles of the triangle are placed adjacent to each other. |
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| # Students should be able to identify the two angles moving are corresponding angles as the line moving is parallel to one of the sides. | | # Students should be able to identify the two angles moving are corresponding angles as the line moving is parallel to one of the sides. |
| # Students can see that when the three angles of the triangle are placed adjacent to each other they form a straight line. | | # Students can see that when the three angles of the triangle are placed adjacent to each other they form a straight line. |
− | <nowiki>--------------</nowiki>
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| * Evaluation at the end of the activity | | * Evaluation at the end of the activity |
| # Have students able to conclude if the sum of angles in any triangle is 180<sup>o</sup>? | | # Have students able to conclude if the sum of angles in any triangle is 180<sup>o</sup>? |
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| Work sheet | | Work sheet |
− | | + | {| class="wikitable" |
− | <nowiki>--------------</nowiki>
| + | !Triangle |
| + | !Angle A |
| + | !Angle B |
| + | !Angle C |
| + | !Exterior angle |
| + | !Angle A + Angle B |
| + | |- |
| + | |Triangle1 |
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| + | |- |
| + | |Triangle2 |
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| + | |- |
| + | |Triangle3 |
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| + | |} |
| * Evaluation at the end of the activity 1. Have the students able to identify the relation between exterior and interior opposite angles of a triangle? | | * Evaluation at the end of the activity 1. Have the students able to identify the relation between exterior and interior opposite angles of a triangle? |