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.

  • Published on
    21-Dec-2015

  • View
    214

  • Download
    2

Embed Size (px)

Transcript

  • 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?

Recommended

View more >