An engaging, animated 17 slide presentation introducing Prime Factors.
This presentation covers a whole lesson, which revises the key vocabulary of factor, prime number, composite number and product through mini starter activities. The lesson begins with revision of factors and an activity to find prime numbers. It builds to introducing prime factors and demonstrates how to use factor trees to find the prime factors of a number. It includes whole class, paired and individual tasks and ends with a plenary where children are challenged to match the correct number with its prime factors.