Difference between revisions of "Adjacent angles"
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| − | + | Adjacent angles are two angles that have a common vertex and a common side. The vertex of an angle is the endpoint of the rays that form the sides of the angle. | |
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=== Objectives === | === Objectives === | ||
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* Digital : Computer, geogebra application, projector. | * Digital : Computer, geogebra application, projector. | ||
* Non digital : Worksheet and pencil. | * Non digital : Worksheet and pencil. | ||
| − | * Geogebra files : '''[https:// | + | * Geogebra files : '''[https://www.geogebra.org/m/ydvd7v2p Adjacent angles.ggb]''' |
| − | {{Geogebra| | + | {{Geogebra|ydvd7v2p}} |
===Process (How to do the activity)=== | ===Process (How to do the activity)=== | ||
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'''Evaluation at the end of the activity''' | '''Evaluation at the end of the activity''' | ||
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| + | [[Category:Lines and Angles]] | ||
Latest revision as of 07:02, 29 October 2019
Adjacent angles are two angles that have a common vertex and a common side. The vertex of an angle is the endpoint of the rays that form the sides of the angle.
Objectives
Introduce children to concept of adjacent angles
Estimated Time
20 minutes
Prerequisites/Instructions, prior preparations, if any
Prior knowledge of point, lines, angles
Materials/ Resources needed
- Digital : Computer, geogebra application, projector.
- Non digital : Worksheet and pencil.
- Geogebra files : Adjacent angles.ggb
Download this geogebra file from this link.
Process (How to do the activity)
- Prior hands on activity (optional – children can use news paper strips to form angles and place them together and notice the resulting angle formed).
- Change the measure of the angles – angle1 and angle 2 using the slider
- If the two angles are place next to each other , what will be formed
- Use the slider to place the angles next to each other
- What is the resulting angle formed due to the two angles
- What is the measure of the angle formed when the two are placed to each other
- Is there any other way to make the two angles adjacent
- Record the values of the two angles and their sum in the worksheet
Sl No. Angle ABC Angle DEF Angle ABC + Angle DEF Angle O Is the sum of two angles greater than Angle O .
Evaluation at the end of the activity