Topic 15 Year 9 Mathematics 

Mathematics 
Topic  Growth and Decay
No of lessons  8
When is it happening  Term 3
What will students learn  Students work with multipliers and repeated growth and decay.   Experience real life experiences with interest rates and ideas of growth and decay
Key Knowledge that students should know at the end of 'Topic' This is the knowledge that students will meet for the first time in this topic  Students work with multipliers and repeated growth and decay.   Experience real life experiences with interest rates and ideas of growth and decay
This is knowledge that students may have met before but will need to deepen their understanding  Students work with multipliers and repeated growth and decay.   Experience real life experiences with interest rates and ideas of growth and decay
Key Skills that students should be able to demonstrate at the end of 'Topic' This is the skills  that students will meet for the first time in this topic Use of multipliers
This is skills that students may have met before but will need to develop  Converting between percentages & decimals
Key vocabulary that students should know and understand
The Big Question  Find the value of £300 invested over 2 years @3% interest?

 

 Key questions that students should be able to answer at the end of the 'Topic'

Write 4% increase as a multiplier
Write 3.5% decrease as a multiplier?
A car decreases in value by 15% each year, how long until it halves in value?
Bacteria increases by 3% per minute, how long until it doubles?