APSB - 8 - Maths :: Direct and Inverse proportions

Go To: APSB-Mathematics-Grade 8

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Course Content
Textbook
Teaching Learning Resource

Course Content / Subtopic list:

Introduction, Direct Proportion
Inverse Proportion
Compound Proportion

[Author - Kripa S]

(Telangana Board) (Telugu Medium)

(Telangana Board) (English Medium)

(AP Board) (English and telugu Medium)

Lesson Plan

[Contributor - Abhinav Prem]

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/file/d/1xXoUBuzUrYqNOYIc5gXyXnkggQ16pp4e/view?usp=sharing (Lesson Plan - English)

https://drive.google.com/file/d/1CLtqB5aU7_YZomgyGoPjQEcS_Noq8Aph/view?usp=sharing (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.

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Images

[Author - Kripa S]

http://fathom.lib.uchicago.edu/2/21701757/21701757_geoscaling.jpg (direct proportion example 1)

https://aos.iacpublishinglabs.com/question/aq/1400px-788px/direct-square-proportion_8559b56553d9c2bf.jpg?domain=cx.aos.ask.com (direct proportion example 2)

https://www.mathsisfun.com/algebra/images/proportion-inverse-square.svg (inverse proportion example 1)

http://studyn.us/blog/wp-content/uploads/2010/09/CartoonSeeSaw.gif (inverse proportion example 2)

Activities

[Author - Kripa S]

1. One pen costs 5 rs. How much with 10 pens cost? Is this direct proportion or inverse proportion? Why?

2. In 1 day, my sister reads 20 pages of a book. In how many days can she finish a book of 200 pages? If my sister reads 25 pages in a day, in how many days can she finish the book? Is this direct proportion or inverse proportion? Why?