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→Concept #
= Teaching Outlines =
= Teaching Outlines =
==Concept #==
==Concept #1 What is a triangle==
===Learning objectives===
===Learning objectives===
#Triangle is a polygon
#Sides and angles determine the type 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.''
===Activity No # ===
===Activity No #1 - Make your triangle ===
{| 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''' - 40 minutes
* '''Materials/ Resources needed'''
* '''Materials/ Resources needed'''
* '''Prerequisites/Instructions, if any'''
* '''Prerequisites/Instructions, if any'''
* '''Website interactives/ links/ Geogebra Applets'''
* '''Website interactives/ links/ Geogebra Applets'''
* '''Process (How to do the activity)'''
* '''Process (How to do the activity)'''
Mark three non-collinear point P, Q and R on a paper. Join these points in all possible ways. The segments are PQ, QR and RP. A simple close curve formed by these three segments is called a triangle. It is named in one of the following ways.
Triangle PQR or Triangle PRQ or Triangle QRP or Triangle RPQ or Triangle RQP .
[[Image:KOER%20Triangles_html_m55b3a2cf.png|picture of equilateral triangle]] PQR
* '''Developmental Questions (What discussion questions)'''
* '''Developmental Questions (What discussion questions)'''
A triangle is one of the basic shapes of geometry: a polygon with three corners or vertices and three sides or edges
which are line segments. In fact, it is the polygon with the least number of sides.
A triangle PQR consists of all the points on the line segment PQ,QR and RP. The three line segments, PQ, QR and RP that form
the triangle PQ, are called the sides of the triangle PQR.
How many angles? A triangle has three angles. In figure, the three angles are ∠PQR ∠QRP and ∠RPQ
A triangle has six parts, namely, three sides,PQ QRand RP.Three angles ∠PQR ∠QRP and ∠RPQ. These are also known
as the elements of a triangle.
What are the intersection points of line segments?
The point of intersection of the sides of a triangle is known as its vertex. In figure, the three vertices are P, Q and R. In a triangle, an angle is formed at the vertex. Since it has three vertices, so three angles are formed. The word triangle =tri + angle ‘tri’ means three. So, triangle means closed figure of straight lines having three angles.
* '''Evaluation (Questions for assessment of the child)'''
* '''Evaluation (Questions for assessment of the child)'''
* '''Question Corner'''
* '''Question Corner'''
* '''Evaluation (Questions for assessment of the child)'''
* '''Evaluation (Questions for assessment of the child)'''
* '''Question Corner'''
* '''Question Corner'''
==Concept #==
==Concept #==