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# Ratio And Proportion Powerpoint

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• Kindly contributed to www.skillsworkshop.org by Michael Hargreaves, Michael.Hargreaves@oldham.ac.uk The Oldham College . Adult Numeracy N1/ L1.7 Work out simple ratio and direct proportion Understand simple ratio as the number of parts, e.g. three parts to one part. Understand direct proportion as the same rate of increase or decrease, e.g. double, half. Understand relationship between simple ratio and fractions Functional Mathematics Level 1: Solve simple problems involving ratio, where one number is a multiple of the other Understand simple ratio as the number of parts, for example three parts to one part. A drink is made from juice and water in the ratio of 1:5. How many litres of drink can I make from 2 litres of juice? Understand direct proportion as the same rate of increase or decrease, for example double, half, scale up amounts of food for three times the number of people, put items in piles with twice as many items in one pile as in the other. Know how to use a simple scale to estimate distance on a road map. 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 Michael Hargreaves, Michael.Hargreaves@oldham.ac.uk The Oldham College . Adult Numeracy N1/ L1.7 Work out simple ratio and direct proportion Understand simple ratio as the number of parts, e.g. three parts to one part. Understand direct proportion as the same rate of increase or decrease, e.g. double, half. Understand relationship between simple ratio and fractions Functional Mathematics Level 1: Solve simple problems involving ratio, where one number is a multiple of the other Understand simple ratio as the number of parts, for example three parts to one part. A drink is made from juice and water in the ratio of 1:5. How many litres of drink can I make from 2 litres of juice? Understand direct proportion as the same rate of increase or decrease, for example double, half, scale up amounts of food for three times the number of people, put items in piles with twice as many items in one pile as in the other. Know how to use a simple scale to estimate distance on a road map. 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
• ### Ratio And Proportion Powerpoint

1. 1. Ratio and Proportion <ul><li>Adult Numeracy N1/ L1.7 </li></ul><ul><li>Work out simple ratio and direct proportion </li></ul><ul><li>Understand simple ratio as the number of parts, e.g. three parts to one part. </li></ul><ul><li>Understand direct proportion as the same rate of increase or decrease, e.g. double, half. </li></ul><ul><li>Understand relationship between simple ratio and fractions </li></ul><ul><li>Functional Mathematics Level 1: Solve simple problems involving ratio, where one number is a multiple of the other </li></ul><ul><li>Understand simple ratio as the number of parts, for example three parts to one part. A drink is made from juice and water in the ratio of 1:5. How many litres of drink can I make from 2 litres of juice? </li></ul><ul><li>Understand direct proportion as the same rate of increase or decrease, for example double, half, scale up amounts of food for three times the number of people, put items in piles with twice as many items in one pile as in the other. </li></ul><ul><li>Know how to use a simple scale to estimate distance on a road map. </li></ul><ul><li>Adult Numeracy N1/L2.3: Understand ratio written in the form 3:2 </li></ul><ul><li>Understand how to work out the number of parts in a given ratio, and the value of one part </li></ul><ul><li>Functional Mathematics Level 2: Understand, use and calculate ratio and proportion, including problems involving scale. </li></ul><ul><li>Understand ratio written in the form 3:2, sharing £60 in the ratio 3:2. </li></ul><ul><li>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? </li></ul>Kindly contributed to www.skillsworkshop.org by Michael Hargreaves, [email_address] The Oldham College.
2. 2. RATIO AND PROPORTION By Michael Hargreaves
3. 3. What is ratio? <ul><li>Ratio is a way of comparing amounts of something. It shows how much bigger one thing is than another. </li></ul><ul><li>1 nursery nurse for every 3 children </li></ul><ul><li>We would write this as 1:3 </li></ul>
4. 4. 1 nursery nurse for every 3 children Ratio = 1:3 <ul><li>If another 3 children joined the nursery, we would need another 1 nursery nurse </li></ul><ul><li>We would now have 2 nursery nurses and 6 children. We could write this as 2:6 </li></ul><ul><li>By cancelling the numbers down (dividing both numbers by 2) we end up with the original ratio of 1:3 </li></ul>
5. 5. Q . In a nursery we need a ratio of 1 nursery nurse for every 3 children. How many nursery nurses do we need for 15 children? <ul><li>Step 1- Write down the ratio 1 : 3 </li></ul><ul><li>Step 2- Label the numbers Nurses Children </li></ul><ul><li> 1 : 3 </li></ul>
6. 6. Q . In a nursery we need a ratio of 1 nursery nurse for every 3 children. How many nursery nurses do we need for 15 children? <ul><li>Step 3- Put the 3 rd number Nurses Children </li></ul><ul><li>in the correct column 1 : 3 </li></ul><ul><li>15 </li></ul><ul><li>Step 4- Divide the 2 numbers </li></ul><ul><li>which are in the same 15 ÷ 3 = 5 </li></ul><ul><li>column </li></ul><ul><li>Step 5- Multiply the answer by </li></ul><ul><li>the number in the other 5 X 1 = 5 </li></ul><ul><li>column </li></ul><ul><li>ANS = 5 nursery nurses </li></ul>
7. 7. Q. A nursery uses 3 pints of milk for 7 bowls of cereal. How many bowls of cereal will they get from 12 pints of milk? <ul><li>Step 1- </li></ul>3 : 7 <ul><li>Step 2 - </li></ul>Milk Cereal 3 : 7 <ul><li>Step 3 - </li></ul>12 <ul><li>Step 4 - </li></ul>12 ÷ 3 = 4 <ul><li>Step 5 - </li></ul>4 X 7 = 28 bowls of cereal
8. 8. Q. A nursery uses 3 pints of milk for 7 bowls of cereal <ul><li>How many bowls of cereal will you get from: </li></ul><ul><li>6 pints of milk </li></ul><ul><li>18 pints of milk </li></ul><ul><li>33 pints of milk </li></ul><ul><li>90 pints of milk </li></ul>
9. 9. Quiz Time
10. 10. If for any reason you want to exit from the test, click the Quit button Use the Next button to move forward when you have selected the correct answer
11. 11. Player 1
12. 12. A factory makes 5 bicycles per hour. How many bicycles can they make in 2 hours? 5 2 9 10
13. 13. A taxi goes 10 miles in 20 minutes. How far does it travel in 60 minutes? 20 miles 60 miles 30 miles 40 miles
14. 14. Sue can do 20 math questions in 5 minutes. How long will it take Sue to do 100 questions? 20 minutes 35 minutes 25 minutes 30 minutes
15. 15. Player 2
16. 16. Four packs of sweets cost £2.00. How many packet of sweets can you buy with £10.00? 15 packets 25 packets 30 packets 20 packets
17. 17. The city bus goes 15 miles in 30 minutes. How far does it go in 120 minutes? 50 miles 45 miles 60 miles 55 miles
18. 18. If 12 roses makes 1 bunch of flowers, how many bunches of flowers would 60 roses make? 3 bunches 4 bunches 5 bunches 6 bunches
19. 19. Player 3
20. 20. If one box of chocolates holds 24 chocolates, how many boxes would be needed for 168 chocolates? 6 8 9 7
21. 21. If we need 300 grams of flour to make 12 scones, how many grams of flour would we need to make 72 scones? 2100 grams 1500 grams 2400 grams 1800 grams
22. 22. If 5 miles are approximately 8 kilometres, approximately how many miles are 96 kilometres? 65 miles 55 miles 50 miles 60 miles Next
23. 23. Exit End of Quiz
24. 24. Correct!
25. 25. Spot on!
26. 26. That's the one!