Learning Objectives In the starter activity By the end of this lesson Pupils should be able to revise simple fraction work from Stage 1/2. By the end of this lesson Pupils should to able to add, subtract, multiply and divide fractions. They will be able to complete related questions from their textbook.
Give a fraction equivalent to STARTER Give a fraction equivalent to
Simplify
Write as a percentage
Write as a fraction 7%
Convert it into a mixed number
Convert it into an improper fraction
Adding Fractions = +
Why Not ??????????? + =
Remember When you add fractions The denominators must be the same
Pupils should be able to: Complete Exercise 1A Question 1 Page 3 Time allotted: 5 minutes
What Happens if The two bottom numbers are different
2 2
Pupils should be able to: Complete Exercise 1A Question 2 (a) – (f) Page 4 Time allotted: 10 minutes
Find LCM (Lowest Common Multiple) Multiples of 3 and 4 Multiples of 3 3,6,9,12,15,18,21,…….. Multiples of 4 4,8,12,16,20,24,…………
Change the denominators into 12 3 4
Subtracting Fractions
Different Denominators
Pupils should be able to: Complete Exercise 1A Question 2 (g) – (r) Page 4 Time allotted: 15 minutes
Multiplying Fractions 1 of the 3 parts is Green of the box is Green The box is split in half This split the green part in half. Now only of the whole box is green
This means that of is
OR
Question 5
Pupils should be able to: Complete Exercise 1C Q 1-8 Page 6 Time allotted: 15 minutes
Dividing Fractions
Method Invert the second fraction and them multiply
Pupils should be able to: Complete Exercise 1C Questions 9-12 Time allotted: 10 minutes Extension:- Mixed Ex 1D Page 7