TNSB - 6 - Maths :: Divisors and Factors

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[Contributor - Kripa S]

Objective: Introduce Types of Numbers and Divisibility Tests to group numbers

Subtopics to be covered:

- Revise Multiples, Factors, Prime and Composite numbers, Odd and Even numbers

- Prime Numbers till 50

- Divisibility by 2, 3, 4, 5, 6, 8, 9, 10

- How to find LCM and HCF for given set of numbers

Learning Outcome:

- Students can group numbers from a given set as asked: Odd, Even, Prime, Composite, Multiples, Factors

- Students can identify if a given number passes any of the divisibility tests

- Students can find LCM and HCF for a set of numbers

[Contributor - Kripa S]

http://www.textbooksonline.tn.nic.in/Books/Std06/Std06-I-MSSS-TM-1.pdf#page=15 (Tamil Medium)

http://www.textbooksonline.tn.nic.in/Books/Std06/Std06-I-MSSS-EM-1.pdf#page=15 (English medium)

[Contributor - Kripa S, Venkat Sriraman, Anitha Sriram]

https://www.youtube.com/watch?v=WL7bTpdMXYQ (Factors and multiples - Tamil)

https://www.youtube.com/watch?v=ox2CWep7ltk (HCF, factors - English)

https://www.youtube.com/watch?v=ApNZ4JnUL3g (Tamil - How to find LCM faster)

https://www.youtube.com/watch?v=DFIzHan6rFo (English - How to find LCM faster)

https://www.youtube.com/watch?v=PwctIQwXdxQ (Tamil - How to say prime numbers) (Source: Rubi Theresa)

https://www.youtube.com/watch?v=sk9XvLCkxE8 (Tamil - How to find LCM - Easy way) (Source: Rubi Theresa)

[Contributor - Kripa S]

http://i1365.photobucket.com/albums/r755/jimn_tonic/OddEvenChart_zps404702f2.jpg (odd , even numbers)

'https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQtJmzmpF7EfciVOD1OY2RoLwybvcPCVA-tFJViKdCQkQkRfJ3R ( example of prime, composite numbers)

'http://4.bp.blogspot.com/-HgqgeVgDWAU/UyeFcFYPv9I/AAAAAAAAC0Q/uXLZCwWOalY/s1600/hundreds+chart+activities+atue.001.png ( prime and composite numbers)

'https://s-media-cache-ak0.pinimg.com/736x/8c/97/f4/8c97f4fcc932d5b371b54dfe6cae378c.jpg (LCM example)

[Contributors - Kripa S, Kamala Ramesh]

1. Quiz: Ram takes bath once in two days. Shyam takes bath once in three days. How many times in a month do they take bath on the same day ?

2. Stand on the ends of the classroom making a huge circle. Start counting from 1. When it is time to say 4, say Meow. Again at 8 say Meow. If you say the number (table of 4) you are out. Let us see who wins. Repeat this game for table of 6, 7, 8 etc.

3. https://www.youtube.com/watch?v=V1Ksd5xyVac&feature=youtu.be (Activity - How to find HCF - Tamil Video) (Source: Rubi Theresa)

[Contributor - Vijayashree T]

https://drive.google.com/open?id=0BzNF2YyqQxJ-d3VwcGVZbFVlb3c (answerkey1)

https://drive.google.com/open?id=0BzNF2YyqQxJ-Z2dfeTNfWFAxeGs (answerkey2)

[Contributor - Gayathri Arun]

Term	Transliterated Term	Translated Term
Divisor	டிவைஸர்	வகுத்தி
Factor	பாக்டர்	காரணி
Prime Number	பிரைம் நம்பர்	பகாவெண்
Composite Number	கம்பொஸிட் நம்பர்	இணைந்த எண், பகுஎண்
Multiples	மல்டிப்ல்ஸ்	மடங்குகள்
Divisibility Test	டிவிஸிபிலிடி டெச்ட்	வகுபடு தன்மை
Factorization	பாக்டரைசஷன்	காரணிப்படுத்தல்
Prime factorization	பிரைம் பாக்டரைசஷன்	பகாக்காரணி படுத்தல்
Greatest Common Divisor (GCD)	்டஸ்ட் காமன் டிவைசர்	மீப்பெரு பொதுக் வகுக்தி
Least Common Multiple (LCM)	ஸ்ட் கமான் மல்டிபிள்	மீச்சிறு பொது மடங்கு

[Contributor - Vijayashree T]

https://drive.google.com/open?id=0BzNF2YyqQxJ-TE5odGR4blhrRTA (worksheet1)

https://drive.google.com/open?id=0BzNF2YyqQxJ-akxVNHBjRWJOVkk (worksheet2)

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