# Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com Ratios and Proportion Adult Numeracy N1/L2.3: Understand ratio written in the form 3:2.

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21-Dec-2015

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• Slide 1
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com Ratios and Proportion Adult Numeracy N1/L2.3: Understand ratio written in the form 3:2 Understand how to work out the number of parts in a given ratio, and the value of one part Functional Mathematics Level 2: Understand, use and calculate ratio and proportion, including problems involving scale. Understand ratio written in the form 3:2, sharing 60 in the ratio 3:2. Understand how to work out the number of parts in a given ratio, and the value of 1 part. For example, the total cost for a job is 200. If the ratio between labour and materials is 5:3, how much was the labour? Kindly contributed to www.skillsworkshop.org by Keith Burnett, Sutton Coldfield College. ping.keith@googlemail.comwww.skillsworkshop.org ping.keith@googlemail.com To see more of Keiths resources visit http://www.slideshare.net/keithpeterhttp://www.slideshare.net/keithpeter
• Slide 2
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 3:2
• Slide 3
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 3:2 3 parts water
• Slide 4
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 3:2 2 parts orange juice 3 parts water
• Slide 5
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 3:2 2 parts orange juice 3 parts water 3 + 2 = 5 equal parts
• Slide 6
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com Find value of one share if you know the value of the whole amount
• Slide 7
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 350 ??
• Slide 8
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 350 ?? How did you work it out?
• Slide 9
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 350 70 350 5 = 70
• Slide 10
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 350 70
• Slide 11
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 350 70 3 70 = 210
• Slide 12
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 350 210
• Slide 13
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 350 210??
• Slide 14
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com Find value of one share if you know the value of the other share
• Slide 15
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 20
• Slide 16
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 20??
• Slide 17
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 2030
• Slide 18
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 2030 How did you work it out?
• Slide 19
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com Try these problems, some in pictures and some in words
• Slide 20
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com JimsJemimas Write down the ratio using the colon notation
• Slide 21
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com 800 JimsJemimas Find the value of Jim and Jemimas shares
• Slide 22
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com ?? 280 Find the value of the whole amount and the missing share ??
• Slide 23
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com Write down the ratio using the smallest whole numbers you can
• Slide 24
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com How much cous-cous and water do you need for two servings?
• Slide 25
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com Write the ratio of (dry) cous-cous to water in its lowest terms
• Slide 26
• Keith Burnett, Sutton Coldfield College, ping.keith@googlemail.com Algernon wants to make 800g of cooked cous-cous. How much dry cous-cous does he need? And how much water in ml?