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| | ===Learning objectives=== | | ===Learning objectives=== |
| | ===Notes for teachers=== | | ===Notes for teachers=== |
| − | ===Activity No 1 : Angles formed when a transversal intersects parallel lines === | + | ===Activity No 1 : [[Angles formed when a transversal intersects parallel lines|Angles formed when a transversal intersects parallel line]] === |
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| − | ''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
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| − | |}
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| − | *'''Estimated Time''' : <br>
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| − | 90 minutes
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| − | *'''Materials/ Resources needed''' :<br>
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| − | Laptop, geogebra file, projector and pointer.
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| − | *'''Prerequisites/Instructions, if any''' : <br>
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| − | #The students should have prior knowledge of parallel lines , transversal, angles and types of angles formed when a pair of parallel lines are intersected by a transversal.
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| − | #They should know what the terms interior, exterior, adjacent, alternate, consecutive, congruent, linear and corresponding mean.
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| − | #Students should know the definition of complementary angles, supplementary angles, and congruent angles.
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| − | | |
| − | *'''Multimedia resources''' :
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| − | Laptop
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| − | *Website interactives/ links/ / Geogebra Applets : <br>
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| − | [[File:4..png|400px]]
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| − | *'''Process''': <br>
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| − | #Reiterate that when a transversal intersects parallel lines, several pairs of congruent and supplementary angles are formed.
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| − | #Have students draw two parallel lines and a third line(transversal) intersecting those two lines on their own paper. Direct them to think about any angle relationships they see. Have them discuss their conjectures with a partner.
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| − | #The teacher can next project the GeoGebra worksheet and discuss about types of angles and their relationships with the class .
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| − | #Finally the teacher and students can summarize together the angle relationships.<br>
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| − | Linear pair of angles - adjacent and supplementary<br>
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| − | Vertical angles - congruent<br>
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| − | Corresponding angles -congruent<br>
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| − | Alternate interior angles - congruent<br>
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| − | Same side interior angles - supplementary<br>
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| − | Alternate exterior angles - congruent<br>
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| − | Same side exterior angles - supplementary<br>
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| − | | |
| − | *'''Developmental Questions (What discussion questions)''' : <br>
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| − | #How many pairs of corresponding angles are there ?
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| − | #What is true about corresponding angles formed when parallel lines are cut by a transversal?
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| − | #Compare different pairs of alternate interior angles. What do you notice?
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| − | #<EGD and <AHF are alternate exterior angles. What is another pair of alternate exterior angles?
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| − | #Compare different pairs of same-side interior angles. What do you notice?
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| − | #Compare different pairs of same-side exterior angles. What do you notice?
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| − | | |
| − | *'''Evaluation (Questions for assessment of the child)''' : <br>
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| − | #What are the characteristics of linear angles (adjacent and supplementary) ?
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| − | #What do you observe about the angle measures of the linear angles?
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| − | | |
| − | *'''Question Corner''' :
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| − | #What do adjacent , alternate, linear , corresponding and consecutive mean individually
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| − | #What are complementary angles?
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| − | #What are supplementary angles ?
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| − | #What does it mean if two angles are congruent?
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| − | #What is the complement of 65 degrees
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| − | #What is the supplement of 70 degrees?
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| − | #Compare angle relationships formed by parallel lines vs. angle relationships formed by non-parallel lines.
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| − | | |
| − | ===Activity No # ===
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| − | ''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
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| − | |}
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| − | *Estimated Time
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| − | *Materials/ Resources needed
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| − | *Prerequisites/Instructions, if any
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| − | *Multimedia resources
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| − | *Website interactives/ links/ / Geogebra Applets
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| − | *Process/ Developmental Questions
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| − | *Evaluation
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| − | *Question Corner
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| − | | |
| | ==Concept #2 == | | ==Concept #2 == |
| | ===Learning objectives=== | | ===Learning objectives=== |
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| | = Math Fun = | | = Math Fun = |
| | + | ==Teachers Corner== |
| | + | ===GeoGebra Contributions=== |
| | + | #The GeoGebra file below demonstrates properties of consecutive interior angles |
| | + | ##consecutive interior angles http://karnatakaeducation.org.in/KOER/Maths/consecutive_angles.html |
| | + | ##Download ggb file here http://karnatakaeducation.org.in/KOER/Maths/consecutive_angles.ggb |
| | + | ##See a video to understand this better http://www.youtube.com/watch?v=cbMwDB1A1rA |
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| − | '''Usage'''
| + | #The GeoGebra file below demonstrates that corresponding angles are congruent |
| | + | ##corresponding angles http://karnatakaeducation.org.in/KOER/Maths/Parallel_lines.html |
| | + | ##Download ggb file here http://karnatakaeducation.org.in/KOER/Maths/Parallel_lines.ggb |
| | + | ##See a video to understand this better http://www.youtube.com/watch?v=hFIjoDPxPdk |
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| − | Create a new page and type <nowiki>{{subst:Math-Content}}</nowiki> to use this template
| + | [[Category:Basics of Geometry]] |
| − | --[[User:Ranjani|Ranjani]] ([[User talk:Ranjani|talk]]) 02:21, 12 September 2013 (PDT)
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