In this lesson, children use their factor knowledge to recognise that some numbers only have two factors, and these are called prime numbers. Children will identify prime numbers and composite numbers and start to notice patterns. There is a teaching presentation accompanied by differentiated activities with a range of fluency, reasoning and problem-solving questions.
National Curriculum Objectives:
Mathematics Year 5:

identify multiples and factors, including finding all factor pairs of a number, and common factors of 2 numbers
know and use the vocabulary of prime numbers, prime factors and composite (non-prime) numbers
establish whether a number up to 100 is prime and recall prime numbers up to 19
multiply and divide numbers mentally, drawing upon known facts
multiply and divide whole numbers and those involving decimals by 10, 100 and 1,000
recognise and use square numbers and cube numbers, and the notation for squared (²) and cubed (³)
solve problems involving multiplication and division, including using their knowledge of factors and multiples, squares and cubes

Differentiation:
There are three levels of differentiation in this pack: ‘working towards,’ ‘expected’ and ‘greater depth’.Level of this Pack:
Age: 9-10
England & Wales: Year 5
Scotland: Primary 5
Rep. Ireland: Fourth Class
Australia: Grade 4
USA: Grade 4#Autumn Block 4...