Topic: Number

LO: To be able to do prime factor decomposition.

STARTER

What is a multiple? What is the Lowest Common Multiple?

What is a factor? What is the Highest Common Factor?

What is a prime factor?

List as many prime numbers as you can in ascending order?

AGREE LEARNING OBJECTIVES

PREPARE FOR LEARNING

PRIMES, FACTORS & MULTIPLES

PRIME NUMBERS

Gann's Square of Nine and Spiral Properties of Prime numbers

PRESENT NEW INFO

2 3 5 7 11 13 17 19

PRIME FACTOR DECOMPOSITION

http://screencast.com/t/UgrlPgs9lTu

CONSTRUCT MEANING

NOW DO THE WORKSHEET…

EXTENSION… PRIME FACTORS OF 2345, 4567, 6789 and 123456789 (You can use a calculator!)

DEMONSTRATE UNDERSTANDING

NOW DO THE ASSESSMENT SHEET…DEMONSTRATE UNDERSTANDING

LO: To be able to do prime factor decomposition.

SO WHAT HAVE WE LEARNED?

Can you work out the prime factors of these in your head…?

49577

121

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