NCERT - 8 - Maths :: Playing with Numbers

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Go To: NCERT-Mathematics-Grade 8


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Course Content / Subtopic list:


  1. Numbers In General Form, Games With Number
  2. Letters For Digits
  3. Tests For Divisibility

Lesson Plan

[Author - Kripa S]


Objective: Practice divisibility, factors, multiplication through puzzles

Subtopics to be covered:

- Reversing the digits

- Letters for digits

- Tests for divisibility - 2,5,10, 3 and 9

Learning Outcome:

- Students know how to represent a number in standard form (eg. 2 digit no. as 10a+b)

- They know to solve sums and find values for alphabets.

- They can solve puzzles and number games using general divisibility principles



Videos

[Author - Rishi Mazumdar]


https://hi.khanacademy.org/math/in-math-by-grade/in-eighth-grade-math/playing-numbers-1 (Khan Academy)


Images

[Author - Kripa S]


http://www.iqtestexperts.com/brainteasers/wp-content/uploads/2010/09/bt-wp-08.gif (number game 1)

https://s-media-cache-ak0.pinimg.com/originals/ed/d1/e9/edd1e9dae6ffcaeb3e2d6a646eed8a7f.gif (number game 2)

https://1.bp.blogspot.com/-cJrbqqINw98/UQQvs5_elKI/AAAAAAAAFfc/OUwjnhNe9oE/s1600/which-number-should-replace-the-question-mark-In-The-Circle-Below.jpg (number game 3)



Additional Aids

[Author - Sneha Tripathi]

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


Worksheets

[Author - Sneha Tripathi]

https://drive.google.com/open?id=0BzNF2YyqQxJ-ZTgzNW9ZQ3N4aFE


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