20 September 2012

20 September, S1 - 11/M3*

Title: Percentages
Room 28
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?    

Resources
Starter





Practice converting percentages into decimals.



Grade D
Increases and decreases of percentages.
MyMaths


Grade C
Calculating percentage changes
Introduce students to the idea of percentage change







Homework

Learning Objective for the next lesson:

Grade E

To be able to use measures of averages to investigate problems.

Why is the best average to use? What does the average tell us

about the numbers?



Grade D
To be able to demonstrate the method for finding the mean from a frequency table of discrete data.
What are the advantages of finding the mean from a table?

Grade C
To be able to demonstrate the method for finding an estimate of the mean from a grouped frequency table of continuous data  
Why can we not find the exact answer?

Due