Difference between revisions of "JACB - 8 - Maths :: Direct and Inverse Proportion"
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Revision as of 08:57, 28 January 2019
Go To: JACB-Mathematics-Grade 8
- Lesson Plan
- Textbook
- Videos
- Images
- Activities
- Additional Aids
- Transliteration
- Worksheets
- Assessments
Contributor - [Rini Jose]
https://drive.google.com/open?id=0BzNF2YyqQxJ-TjdJSWgyZk1QVmM (JEPC Board) (Hindi Medium)
[Author - Rishi Mazumdar]
https://hi.khanacademy.org/math/in-math-by-grade/in-eighth-grade-math/direct-inverse-proportions (Khan Academy)
[Author - Kripa S]
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTHyX4m1veFeiPuZymoJGrmR8_G1Hi8qZKBzfUE66geuwYD0ry0 (proportion example 1)
https://image.pbs.org/poster_images/assets/PROPORTION.jpg.resize.710x399.jpg (proportion example 2)
https://www.mathsisfun.com/algebra/images/proportion-1a.gif (proportion with numbers)
https://www.mathsisfun.com/algebra/images/proportion-inverse-square.svg (inverse proportion)
[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?
[Contributor - Ashish Gaurav]
https://drive.google.com/open?id=1qJWvi-mYfVPYlAa1O1o7ukkpfl4TuKYu (Question Bank - English)
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