Mrs Watson
This week, we are revising ratio and proportion. These words can be confusing. On a bottle of orange squash it might say "dilute one part concentrate to four parts water".
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Ratio compares the two quantities. Here, that is squash (1 part) and water (4 parts)
squash : water
1 : 4
Proportion tells us how much one part is of the whole. Here, one fifth of the drink is squash. This is often written as a fraction.
You can summarise this as ratio is part to part and proportion is part to whole.
Monday - proportion recipes
Watch: https://corbettmaths.com/2013/05/16/recipes/
mymaths task:
- proportion introduction
- scaling and rate problems
Do as many of these fluency questions as you can in the time on paper or in a blank word document.
Tuesday – ratio
mymaths tasks:
- ordering and simplifying fractions
- ratio introduction
- modelling ratio
If you need a reminder, you can watch this video on simplifying ratios.
Wednesday – ratios to fractions and percentages
Watch: https://corbettmaths.com/2017/03/26/19366/
Do p33 and 34 in your CGP book.
Do as many of these fluency questions as you can in the time on paper or in a blank word document.
Thursday – sharing the total
Watch: https://corbettmaths.com/2013/03/03/ratio-sharing-the-total/
mymaths task:
- dividing in a ratio
Do as many of these fluency questions as you can in the time on paper or in a blank word document.
Friday
Arithmetic paper