NCERT - 7 - Maths :: Comparing Quantities

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Go To: NCERT-Mathematics-Grade 7

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Course Content / Subtopic list:


  1. Equivalent Ratios,
  2. Percentage
  3. Use Of Percentages
  4. Buying And Selling
  5. Simple Interest

Lesson Plan

[Contributor - Kripa S]


Objective: To revise ratio, proportion and learn how to find percentage

Subtopics to be covered:

- Convert a ratio into a fraction, percentage and decimal

- Convert fraction ad decimal to percentage

- Simple Interest

Learning Outcome:

- Students can write percentage for a given fraction or a decimal

- Students can solve problems based on percentage (example - Simple Interest)

- Students can find value of unknown in a ratio



Videos

[Contributor - Rishi Mazumdar]

(Source - Khan Academy)

https://hi.khanacademy.org/math/in-math-by-grade/in-seventh-grade-math/in-seventh-grade-math/comparing-quantities (Hindi - Comparing Quantities)

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)

https://qrfellows.files.wordpress.com/2013/11/139202.jpg (percentage in daily use)

https://media.gcflearnfree.org/ctassets/topics/231/half-measuring-cup3.png (conversion of fraction to percentage)

Activities

[Contributor - Shiyamali S]

https://drive.google.com/open?id=0BzNF2YyqQxJ-amZmQms4NlBXV3c (Activity 1)

https://drive.google.com/open?id=0BzNF2YyqQxJ-OWZxTzd3WWxhVkE (Activity 2)

Additional Aids

[Contributor - Reshav Dey]

https://drive.google.com/open?id=0BzNF2YyqQxJ-b3F1V1FhYVY1N00

Transliteration

[Contributor - Suwetha]

Term Transliterated Term Translated Term
RATIO रेश्यो अनुपात
FRACTION फ्रैक्शन भिन्नों
PROPORTION प्रोपोरशंस समानुपात
PERCENTAGE परसेंटेज प्रतिशतता
DECIMAL डेसीमल दशमलव
WHOLE होल संपूर्ण
UNITS यूनिट्स इकाइयाँ
COST PRICE कॉस्ट प्राइस क्रय मूल्य
SELLING PRICE सेल्लिंग प्राइस विक्रय मूल्य
PROFIT प्रॉफिट लाभ
LOSS लॉस हानि
AMOUNT अमाउंट मिश्रधन
PRINCIPAL प्रिंसिपल मूलधन
INTEREST इंटरेस्ट ब्याज
SIMPLE INTEREST सिंपल इंटरेस्ट साधारण ब्याज

Worksheets

[Contributor - Reshav Dey]

https://drive.google.com/open?id=0BzNF2YyqQxJ-QWZjNTh1a1VPc1k


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