NCERT - 8 - Maths :: Cubes and Cube Roots
Go To: NCERT-Mathematics-Grade 8
Course Content / Subtopic list:
- Cubes
- Cube Roots
[Author - Kripa S]
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0853-Ganit/Chapter_7/index.html (NCERT Hindi Medium)
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0852-Mathematics/7/index.html (NCERT English Medium)
https://drive.google.com/open?id=0BzNF2YyqQxJ-RHBnVUZON1ZNaE0 (JEPC Board) (Hindi Medium)
Lesson Plan
[Author - Kripa S]
Objective: Introduce cubes and cube roots
Subtopics to be covered:
- Cubes from 1 - 10
- Perfect cubes, factors for cubes
- Properties of cubes- for odd numbers and even numbers
- Cube roots by factorization method
- Cube roots by estimation method
Learning Outcome:
- Students can find cube for a given number
- They can find cube root for a given number by one of the two methods
Videos
[Contributor - Rishi Mazumdar]
(Source - Khan Academy)
https://hi.khanacademy.org/math/in-eighth-grade-math/cubes-cube-roots (Hindi - Cube Roots)
(Source - HindiFreeMath(Pratham) )
https://www.youtube.com/watch?v=Ctmq0SANBQw (Hindi - Cube and Cube Roots)
Images
[Author - Kripa S]
https://image.slidesharecdn.com/chcubesandcuberoot-141022063109-conversion-gate01/95/cubes-and-cube-root-8-638.jpg?cb=1413959587 (example of cube, cube root)
http://www.learnnext.com/media/images/lessonImg/classVIII/maths/clip_image006_0039.jpg ( fun fact with cubes)
http://3.bp.blogspot.com/-aAZIwhwgTJQ/VdHew1IPrbI/AAAAAAAAAhM/Xhh3GU2zwYs/s1600/cube1.PNG (cubes for 1 - 10)
Activities
[Author - Kripa S]
1. Make a chart of cubes for numbers 1 to 20.
2. Make a chart of numbers whose cube roots are from 1 to 20
3. Make teams of two students each, where one student will ask cube of a number, and other student will ask cube root of a number.
Additional Aids
[Author - Dr Nikitha Narayan]
https://drive.google.com/open?id=0BzNF2YyqQxJ-bFVCWmwwbzAyQU0
Transliteration
[Contributor - Vikas Kumar]
| Term | Transliterated Term | Translated Term |
| cube | क्यूब | घन |
| cube root | क्यूब रूट | घनमूल |
| prime factors | प्राइम फैक्टर्स | अभाज्य गुणनखंड |
| quotient | कोसंट | भागफल |
| unit digit | यूनिट डिजिट | इकाई अंक |
| perfect cube | परफेक्ट क्यूब | पूर्ण घन |
| natural number | नेचुरल नंबर | प्राकृत संख्या |
| consecutive integers | कोंसएकुटिव इनटीजर्स | क्रमागत पूर्णांक |
| odd number | ओड नंबर | विषम संख्या |
| even number | इवन नंबर | सम संख्या |
| cuboid | क्युबोइड | घनाब |
Worksheets
[Author - Dr Nikitha Narayan]
https://drive.google.com/open?id=0BzNF2YyqQxJ-OGdqQ2Y0Y24tV2s
Enable comment auto-refresher