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Line 1: − + − #To visualize the meeting point of lines/rays forms an angle+ − #Understanding the use of protractor to measure angle − #Familiar with the angle formation − #Get to know about classification of angles − ===Estimated Time=== − 90 minutes − 10 - 15 minutes : previous class worksheet discussion+ + − 60 minutes : Discussion on Angle formation, measuring and types of angles.+ + − 10 -15 minutes : Refreshment activity (related to language)+ − ===Prerequisites/Instructions, prior preparations, if any===+ − Prior understanding of points, Lines, rays and segment concepts − − *Digital : Computer, Geogebra application, projector. − *Non-digital : Worksheet and pencil. − ===Process (How to do the activity)=== − '''Teachers work:''' − demonstration to+ − #Helps to identify intersecting lines (two or more) meet only at one point always and also can cross each other at a common vertex (which is the point of intersection). − #Angle formation using sticks and in Geogebra and also labelling it - Hands-on activity (children can use two sticks to understand about angle formation) - To help students to identify the angle formation in real life − #How to measure an angle using protractor − - Help to recognize the type of angle − + + + + + + + + + + + + + + + + + − -Identify and give some examples where they will see angles formation in our surroundings+ − -Using 2 sticks they have to observe angle formation and measure it using protractor − − -Using Geogebra plot and name an angle − − -draw different types of angles in notebook and label it :Acute, Obtuse, Right, Complete and Straight angle. − ===Developmental Questions:=== − #When two segments are joined at a point how many angles are formed? − #How many angles are formed when two lines crossing each other? − #How you name label and name the angles? − # − #What is the convention used to measure angles? − #Does the angle depend on the segment length? − #What are the different types of angles? − ===Refreshment activity:=== − '''Tongue twisters game''' − − Ask students to read the '''tongue twisters''' aloud. Then ask them to read anyone again but faster. Then ask them to read as fast as they can 10 times. − − 1. Six silly sheep still asleep − − 2. The big fat Cat sat on the Rat − − 3. Billy blows big blue bubbles − − 4. I scream, you scream, we all scream for Ice cream. − − '''[[:File:Intersection of lines and Angle Formation.odt|Download lesson]]'''
Intersection of lines and Angle Formation (view source)
Revision as of 01:51, 4 October 2021
, 01:51, 4 October 2021no edit summary
Source: IT for Change
Source: IT for Change
===Objectives===
=== Objectives ===
To verify vertically opposite angles are equal
=== Estimated Time ===
20 minutes
=== Prerequisites/Instructions, prior preparations, if any ===
Knowledge about point, line, angle
=== Materials/ Resources needed ===
Digital: Click here to [[:File:Intersection of two lines.ggb|open]] the file
===Materials/ Resources needed===
Non-digital: Paper, pencil, ruler, compass, protractor
'''Students work:'''
===Process (How to do the activity) ===
{{Geogebra|haaj2yr5}}'''Procedure :'''
# What are intersecting lines?
# Identify two lines cross each other in a plane i.e. lines 'g' and 'f' intersect at point 'A'
# Identify intersecting lines (two or more) meet only at one point always and also can cross each other at common vertex (which is the point of intersection).
# Identify the angles formed at common vertex 'A'
# Identify two pairs of opposite angles
# What is the vertically opposite angle?how many pair of vertically opposite angles are formed?
# Identify and measure vertically opposite angles?What is your conclusion?
# Can vertically opposite angles be adjacent?
# How many pairs of adjacent angles are formed?
# Idenify and measure adjacent angles?What is your conclusion?
=== Evaluation at the end of the activity ===
# Can two lines cross at two points?
# If out of two angles of linear pair one is 60°, then what is the measure of other angle?
# If two angles are vertically opposite angles, where the measure of one of the angles is 30°, then what is the measure of other angle?
Go back - [[KVS Lines and Angles|click here]]
[[Category:Lines and Angles]]
===Evaluation at the end of the activity===
===Evaluation at the end of the activity===
[https://karnatakaeducation.org.in/KOER/en/images/6/67/Worksheet_2_-_Angles_formation_and_its_types.pdf Worksheet 2 - Angles formation and its types.pdf]
[https://karnatakaeducation.org.in/KOER/en/images/6/67/Worksheet_2_-_Angles_formation_and_its_types.pdf Worksheet 2 - Angles formation and its types.pdf]