NCERT - 6 - Maths :: Ratio and Proportion
Go To: NCERT-Mathematics-Grade 6
Course Content / Subtopic list:
- Ratio
- Proportion
- Unitary Method
Lesson Plan
[Contributor - Kripa S]
Objective: To find ratio of two given numbers, find proportion between two given ratios
Subtopics to be covered:
- Define ratio, examples of ratio
- Simplify ratio to smaller equivalent ratio
- Compare two ratio, check if they are proportional
Learning Outcome:
- Students can write a ratio for given example
- Students can write two equivalent ratio in a proportion
- Students can find value of unknown in a proportion.
Videos
[Contributor - Rishi Mazumdar]
https://hi.khanacademy.org/math/in-math-by-grade/in-sixth-grade-math/ratio-and-proportion (Khan Academy)
Images
[Contributor - Kripa S]
http://study.com/cimages/videopreview/4qfs3doxw6.jpg (what is ratio)
http://www.edpax.com/media/managed/large/ratio_proportion_2nd_41.png (ratio example 1)
http://www.rpdp.net/mathdictionary/english/vmd/images/e/equivalentratios.gif (ratio example 2)
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)
http://images.tutorvista.com/cms/images/113/equivalent-ratios.png (equivalent ratio)
Activities
[Contributor - Kripa S]
1. In a class, there are 20 boys and 40 girls. What is the ratio of the number of boys to the number of girls?
2. Saurabh takes 15 minutes to reach school from his house and Sachin takes one hour to reach school from his house. Find the ratio of the time taken by Saurabh to the time taken by Sachin.
3. In a school, there were 73 holidays in one year. What is the ratio of the number of holidays to the number of days in one year
4. Measure the length and breadth of your classroom. What is the ratio of length to breadth ? Now check the ratio of length to breadth of your notebook. Are the two in same proportion ?
Additional Aids
[Contributor - Reshav Dey]
https://drive.google.com/open?id=0BzNF2YyqQxJ-OVQ1Rk9kbGFiNGs
Worksheets
[Contributor - Reshav Dey]
https://drive.google.com/open?id=0BzNF2YyqQxJ-S1JkcF9mbU51M0k
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