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| #Triangle is a polygon | | #Triangle is a polygon |
| #Sides and angles determine the type of triangle | | #Sides and angles determine the type of triangle |
| + | #The relationship between sides and angles of triangle |
| ===Notes for teachers=== | | ===Notes for teachers=== |
| ''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.'' | | ''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.'' |
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| * '''Question Corner''' | | * '''Question Corner''' |
| | | |
− | ===Activity No # === | + | ===Activity No # 2 - Types of triangles - Identifying and naming === |
| {| style="height:10px; float:right; align:center;" | | {| style="height:10px; float:right; align:center;" |
| |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;"> | | |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;"> |
| ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> | | ''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> |
| |} | | |} |
− | * '''Estimated Time''' | + | *'''Estimated time''' - 20 minutes |
| * '''Materials/ Resources needed''' | | * '''Materials/ Resources needed''' |
| * '''Prerequisites/Instructions, if any''' | | * '''Prerequisites/Instructions, if any''' |
| * '''Multimedia resources''' | | * '''Multimedia resources''' |
| + | [[Image:KOER%20Triangles_html_m27d3a9c5.png]] |
| * '''Website interactives/ links/ Geogebra Applets''' | | * '''Website interactives/ links/ Geogebra Applets''' |
| * '''Process (How to do the activity)''' | | * '''Process (How to do the activity)''' |
− | * '''Developmental Questions (What discussion questions)''' | + | Identify and name the triangles in the above figure. |
− | * '''Evaluation (Questions for assessment of the child)''' | + | *'''Evaluation''' |
− | * '''Question Corner''' | + | # Is it possible to construct a triangle with 3 collinear points? |
| + | # Is it possible to construct a triangle whose sides are 3cm, 4cm and 9cm. Why?. |
| + | |
| + | |
| + | *'''Estimated time''' - 20 minutes |
| + | * '''Materials/ Resources needed''' |
| + | * '''Prerequisites/Instructions, if any''' |
| + | * '''Multimedia resources''' |
| + | Look at the following images below |
| + | {|class="wikitable" |
| + | |- |
| + | |[[Image:KOER%20Triangles_html_m7d1c3f58.png|Equilateral Triangle]] |
| + | |[[Image:KOER%20Triangles_html_28f84d5e.png|Isosceles triangle]] |
| + | |[[Image:KOER%20Triangles_html_36280b0d.png|Scalene triangle]] |
| + | |- |
| + | |[[Image:KOER%20Triangles_html_21013b99.png|Right triangle]] |
| + | |[[Image:KOER%20Triangles_html_4b875456.png|Obtuse triangle]] |
| + | |[[Image:KOER%20Triangles_html_5c56ee05.png|Acute triangle]] |
| + | |} |
| + | * '''Website interactives/ links/ Geogebra Applets''' |
| + | * '''Process (How to do the activity)''' |
| + | Identify and name the triangles in the above figure. |
| + | *'''Evaluation''' |
| + | # Can a scalene triangle also be a right-angled triangle ? If yes can you draw one ? |
| | | |
| ==Concept #== | | ==Concept #== |