14 October 2013

14 October, S3 - Year 7A*


Title: Percentage
Learning Targets

Beginning
To be able to calculate simple percentages of a quantity using the bubble method.
If 100% = 300, how do we find 15%?

Developing
To be able to demonstrate how to find any percentages of a quantity by using decimals.
What is 5% as a decimal? How can I use this to find 5% of 455?


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?

Mastering

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?

Resources





Beginning




Developing


MEP - 11.2, page 3

Percentage of a number - Top Trumps (print)


Increases and decreases of percentages.


CIMT - Percentage Increase



Fraction, Decimals and Percentages: MEP - 11, page 1


Mastering
Calculating percentage changes
Introduce students to the idea of percentage change

Compound Percentages











MEP 11.8, page 23

Homework
Open this link and then open the file in Keynote. Your task is to sort the answers and questions (by moving the answers into the correct place).
Once you are happy with your answers, screen print your work and upload to Showbie.
Stick on Maths - 6 Calc 1