APSB - 7 - Maths :: The Triangle and its Properties

Go To: APSB-Mathematics-Grade 7

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Course Content
Textbook
Teaching Learning Resource

Course Content / Subtopic list:

Introduction, Classification Of Triangles
Relationship Between The Sides Of A Triangle -Sum Of All Interior Angles
Altitudes Of A Triangle, Medians Of A Triangle
Properties Of Triangles

Semester 1

TextBook Link

Semester 2

TextBook Link

Lesson Plan

[Contributor - Sowmya Battina]

Dear Volunteer,

Please find below the detailed lesson plan and PPT for this chapter in the language mentioned against the respective link. While the lesson plan will give an overall flow of the lesson, the PPT will include lesson flow as well as the presentations for the class.

https://drive.google.com/open?id=1sWdvU7n5bJSXz1o3oroxhg-nOsLXw1Ve (Lesson Plan - English)

https://drive.google.com/open?id=17mMmFz907cQqvdHJDzNPRdUG2KzMILLP (PPT - English)

You may use the content as it is or download and modify them to suit the students requirements.

If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload the modified version.

The worksheets of the lesson can be accessed from the worksheet tab.

Kindly rate the lesson plan and share your suggestions and comments on the lesson plan in the comments box below. Your valuble suggestions and comments will help us to improve the content.

Videos

[Author - Kripa S, Vinaya Santhosh]

https://te.khanacademy.org/video?lang=te&format=lite&v=xKaCeFOA_AU ( (Khan Academy) సరూప త్రిభుజాలు )

https://www.youtube.com/watch?v=JphEvuYbXPs (Telugu - Sides of angles explained)

https://www.youtube.com/watch?v=Gp4ZWP-2TPc (Telugu - Properties of Triangles, right angled, Acute and Obtuse angles)

https://www.youtube.com/watch?v=OBXWcWcvYw8 (Telugu - TYpes of triangles and right angles)

[Contributor - Sowmya Battina]

Lesson Plan version 1.1 Videos

https://www.youtube.com/watch?v=NVuMULQjb3o (Recap of polygons)

https://www.youtube.com/watch?v=r4rySgvfDQU (Triangle based on sides and angles)

https://www.youtube.com/watch?v=MfTRvaZO8e4 (Altitude of a trianlge, median and centroid)

https://www.youtube.com/watch?v=vw-rOqDBAvs

https://www.youtube.com/watch?v=JR-HVADDL74 (Sum of exterior angle)

Images

[Author - Kripa S]

https://s3-ap-southeast-1.amazonaws.com/learnhive/lcards/Types-of-Triangles-521dd275368b9.png (types of triangles)

http://s3-ap-southeast-1.amazonaws.com/subscriber.images/maths/2016/06/22114543/ALTITUDE.png (Altitudes of a triangle)

http://s3-ap-southeast-1.amazonaws.com/subscriber.images/maths/2016/06/22114547/Triangle.Centroid.Median.png (Medians of a triangle)

http://image.wistatutor.com/content/feed/u774/angle%20pro3.JPG (exterior angle property)

https://dj1hlxw0wr920.cloudfront.net/userfiles/wyzfiles/f0516fa1-669b-441d-9f11-a33907a2a0b0.gif (Angle sum property of a triangle)

https://upload.wikimedia.org/wikipedia/commons/thumb/b/b2/TriangleInequality.svg/220px-TriangleInequality.svg.png ( Property of lengths of sides of triangle)

Activities

[Author - Kripa S]

1. Can a median of a side of triangle be out of the triangle ? Try and see.

2. Draw one equilateral triangle, one isosceles triangle, one scalene triangle. Find their altitudes and means. What is common about them?

Additional Aids

[Author - Meghana Bommi Reddy]

https://drive.google.com/open?id=0BzNF2YyqQxJ-QUNTWXd4YlZvV0U

[Contributor - Kripa S]

https://community.ekstep.in/preview/content/do_31225910255086796823294 (Activity on types of triangles) (Source: Ekstep)

[Contributor - Sowmya Battina]

Lesson Plan version 1.1 PPT

https://drive.google.com/open?id=17mMmFz907cQqvdHJDzNPRdUG2KzMILLP

Transliteration

[Author - Kalanadhabhatla Shweta]

Term	Transliterated Term	Translated Term
Triangle	ట్రైయాంగిల్	త్రిభుజం
Line	లైన్	రేఖ
Line segment	లైన్ సెగ్మెంట్	మెంట్
Scalene	స్కేల్న్
Isoceles	ఇసోసెలెస్	సమద్విబాహు త్రిభుజం
Median	మీడియన్	సగటు
Perpendicular	పెర్ఫెన్దిక్యూలర్	లంభం
Altitude	ఆల్టిట్యుడ్	ఎత్తులో