TNSB - 7 - Maths :: Real Number System
Go To: TNSB-Mathematics-Grade 7
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[Author - Kripa S]
Objective: To revisit natural numbers, whole numbers, integers, rational numbers, fractions, decimals, exponents
Subtopics to be covered:
- Revise Natural numbers, whole numbers, integers
- Operations (+, - , x , ÷) on numbers
- Revise Fractions (types, four operations on fractions)
- Revise decimals (place value, four operations on decimals)
- Introduce Rational numbers (standard form, four operations on rational numbers)
- Revise Exponents and powers (laws of exponents)
Learning Outcome:
- Students can identify a given number as integer, fraction, decimal, exponent
- Students can solve problems on numbers using one of the four operations (+, - , x , ÷ )
- Students can solve problems involving exponents, decimals, fractions
[Author - Kripa S]
http://www.textbooksonline.tn.nic.in/Books/Std07/Std07-I-MSSS-TM-1.pdf#page=6 (Tamil Medium)
http://www.textbooksonline.tn.nic.in/Books/Std07/Std07-I-MSSS-EM-1.pdf#page=6 (English medium)
[Author - Sumathi Sampath]
https://www.youtube.com/watch?v=vwFK8Jz_Zss (Exponents - Vetrivel Foundation)
[Author - Kripa S]
http://s2.thingpic.com/images/Fi/A35fanMCykPtZGD35jLj87i3.png (what are real numbers)
https://mathspace-production-media.mathspace.co/media/upload/images/9-surds/chapter-entry-rational-and-irrationals.png (examples of real numbers)
'http://3.bp.blogspot.com/_KHzog4bhr_0/TNgewweh7DI/AAAAAAAAAOQ/53ufgj7Io-M/s1600/fractions.gif (fraction from 1/10 to whole)
https://www.mathsisfun.com/algebra/images/exponent-8-2.svg (exponents)
http://www.coolmath.com/sites/cmat/files/images/01-exponents-definition-03.gif (example of exponents)
https://i0.wp.com/www.math-help-online.com/wp-content/uploads/2016/04/square-roots.jpg (square roots)
[Author - Kripa S]
1. Make two teams. One team will write a number on board, and other team will guess whether it is a rational number or not.
2. Make a chart of how rational numbers consists of integers, whole numbers, natural numbers.
3. Make a chart of how real number system consists of both rational and irrational numbers.
4. https://www.youtube.com/watch?v=YqWe7QBjPrk&feature=youtu.be (addition of integers)
[Author - Gayathri Arun]
| Term | Transliterated Term | Translated Term | |
| Natural Number | நேச்சுரல் நம்பர் | இயல் எண் | |
| Whole Number | ஹோல் நம்பர் | முழு எண் | |
| Integer | இன்டேஜ்ர் | முழுவெண் | |
| Addition | அட்டிஷன் | கூட்டல் | |
| Subtraction | சப்ட்ராக்ஷன் | கழித்தல் | |
| Multiplication | மல்டிப்ளிகேஷன் | பெருக்கல் | |
| Division | டிவிசன் | வகுத்தல் | |
| Fraction | பிராக்ஷன் | பின்னங்கள | |
| Rational Number | ரஷனல் நம்பர் | விகிதமுறு எண் | |
| Decimal | டெசிமல் | ,தசமம் | |
| Powers | பௌஏர்ஸ் | அடுக்கு, | |
| Exponents | எக்ஸ்பொன்டேன்ட் | அடுக்குக்குறி, |
[Author - Lekshmi Eswar]
https://drive.google.com/open?id=0BzNF2YyqQxJ-a2VGWjd1THUybFk
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