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From Karnataka Open Educational Resources
Introducing formation of angle (view source)
Revision as of 10:21, 8 January 2022
, 10:21, 8 January 2022no edit summary
The standard angle concept based on the relative inclination of two lines meeting at a point irrespective of length of arms is discussed in an exploratory method.
===Objectives===
===Objectives===
* Introduce children to the concept of angle
* Introduce children to the concept of angle
* Digital : Computer, geogebra application, projector.
* Digital : Computer, geogebra application, projector.
* Non digital : Worksheet and pencil.
* Non digital : Worksheet and pencil.
* Geogebra files : "[https://ggbm.at/chrquf9j Introduction to angle formation]”
* Geogebra files : "[https://ggbm.at/ytpascnk Introduction to angle formation]”
{{Geogebra|chrquf9j}}
{{Geogebra|ytpascnk}}
===Materials/ Resources needed===
===Materials/ Resources needed===
'''-Formation of angle'''
'''-Formation of angle'''
* Use the file to demonstrate formation of angle
Use the file to demonstrate formation of angle
* Ask how segments rotation changes angle
* Ask how many angles are formed
Ask how segments rotation changes angle
Ask how many angles are formed
'''-Measure angles'''
'''-Measure angles'''
* How do you measure this angle
How do you measure this angle
* Measure both angles as the children say
* Ask if there is any difference in the angle measures
Measure both angles as the children say
* Mention the convention of clockwise/anticlockwise measurement
* Mention reflex/exterior angle
Ask if there is any difference in the angle measures
* Is there a relation between the two angles measured
Mention the convention of clockwise/anticlockwise measurement
Mention reflex/exterior angle
Is there a relation between the two angles measured
'''-Angle measure independent of segment length'''
'''-Angle measure independent of segment length'''
* Does the angle depend on the segment length – drag the line segments to show.
Does the angle depend on the segment length – drag the line segments to show.
'''Evaluation at the end of the activity'''
'''Evaluation at the end of the activity'''
* What are the different types of angles?
* What are the different types of angles?
* What is the measure of the total angle formed at a point is?
* What is the measure of the total angle formed at a point is?
* What is the convention used to measure angles?
* What is the convention used to measure angles?
[[Category:Lines and Angles]]
