Prime and Composite numbers — methodical recommendation. Mathematics CBSE, Class 6.

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Methodical recommendation:

Theory

Number	Name	Description
1.	Factors of a number	Learn what are factors of a number.
2.	Finidng factors	Learn to find the factors of a number.
3.	Multiples of a number	Learn about multiples of a number with some examples.
4.	Prime number	Learn to find the prime numbers from the natural number system.
5.	Composite number	Learn to find the composite numbers from the natural number system.
6.	Eratosthenes sieve method	Use the Eratosthenes sieve method to find the prime numbers.
7.	Perfect number, co-prime number and twin primes	Learn about perfect numbers, co-prime numbers and the twin primes.

Practice Questions

Number	Name	Type	Difficulty	Marks	Description
1.	Select the correct answer	1st type - receptive	easy	2 m.	Test your conceptual understanding level on prime, composite numbers, factors and multiples.
2.	Calculate the first five multiples	1st type - receptive	easy	2 m.	Practice to find the first five multiples of a given number.
3.	Match column I items to column II items	2nd type - interpretation	easy	5 m.	Try to match column I items with column II items of multiples provided
4.	Find all the factors	2nd type - interpretation	medium	4 m.	Practice to find the factors of the given number.
5.	Write down all required multiples	2nd type - interpretation	medium	3 m.	Practice to find the multiples of a given number.
6.	Express the number as sum of odd primes	3rd type - analysis	medium	5 m.	Practice to express the given number as the sum of two odd primes.
7.	Check the number is prime or not	3rd type - analysis	hard	4 m.	Practice to find the given number is prime or not.
8.	Find the required primes	3rd type - analysis	hard	6 m.	Practice to find the sum of odd primes and express the list of prime numbers.
9.	State whether the declaration is true or false	3rd type - analysis	hard	4 m.	Check whether the given statements are true or false.
10.	Write seven consecutive composite number less than 100	1st type - receptive	easy	4 m.	All seven consecutive composite numbers less than 100 should be written

Questions for Teacher Use

Number	Name	Type	Difficulty	Marks	Description
1.	List out the required pair of prime numbers	Other	medium	5 m.	Determine the pair of prime numbers whose digits are same.
2.	Find five pairs of numbers for the condition given	Other	medium	5 m.	Predict the five pairs of prime numbers whose sum is divisible by '5'.
3.	Arrange the prime number and odd prime numbers in order	Other	medium	6.4 m.	Order the prime numbers from the given list of numbers.
4.	Find the multiples	Other	easy	2 m.	Practice to find the first five multiples of a given number.
5.	Factors of a number	Other	medium	2 m.	Practice to find the factors of the given number.
6.	Prime number	Other	hard	2 m.	Practice to find the sum of odd primes and express the list of prime numbers.
7.	Find the prime factors	Other	easy	2 m.	Practise to find the prime factors of the given number.
8.	Find the prime factors	Other	easy	2 m.	Practise to find the prime factors of the given number.
9.	Evaluate the common multiples	Other	medium	2 m.	Practice problem to find the common multiples of two or more numbers.

Tests

Number	Name	Recomended time:	Difficulty	Marks	Description
1.	Training test	00:15:00	medium	2 m.

Periodic assessments

Number	Name	Recomended time:	Difficulty	Marks	Description
1.	Homework	00:20:00	hard	7 m.
2.	Homework	00:20:00	hard	4 m.
3.	Progress test	00:20:00	hard	4 m.
4.	Periodic Assessment	00:20:00	medium	12 m.	PA 1

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