Room 36
Learning Objectives
Grade D
To be able to use a percentage increases
and decreases.
A coat which costs £35 is reduced by 12.5%
in a sale - how much do you now pay?
Grade C
To be able to calculate a percentage
increases and decreases.
A coat which costs £35 is reduced to £25 in
a sale - what is this percentage change?
To know how to calculate compound interest
and investigate how it differs to simple interest.
I invest £1200 for 3 years at an interest
rate of 3.5% - how much money do I have after 3 years?
Grade B
To be able to solve reverse percentage
problems.
A car costs £1020 after the price is
reduced by 15%, what was the original cost?
Resources
Starter
Practice converting percentages into decimals.
Grade D
Increases and decreases of percentages.
MyMaths
MyMaths
Grade C
Calculating percentage changes
Introduce students to the idea of percentage change
MEP 11.3, page 13-14
Learning Objectives for next lesson:
Grade B
To be able to solve reverse percentage
problems.
A car costs £1020 after the price is
reduced by 15%, what was the
original cost?
Grade A
To be able to investigate problems
involving percentage increases, decreases and compound interest.
If I borrow £1000 at a interest rate of
4000% pa, how much interest
will I have paid after 1 week?
