Starter quiz
- '35' ✓
- How many 7s are there in 63?
- '9' ✓
- Which equations represent the question 'How many 7s are there in 63'?
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- ✓
- ✓
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- What is one half times the size of 28?
- '14' ✓
- How long is this room in real life?
- '4 m' ✓
- Which equation represents the length of the room in real life?
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- ✓
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Exit quiz
- Sam is making lemonade. They use one part lemon for every 3 parts water. Which bar models represent Sam's lemonade?
- Which lemonade will be the strongest in lemon flavour?
- Sam is making lemonade. They use one part lemon for every 3 parts water. If they use 15 parts of water, how many parts of lemon will they need?
- 3 parts lemon
- 4 parts lemon
- 5 parts lemon ✓
- 13 parts lemon
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- A necklace has 2 patterned beads for every 3 plain beads. There are 12 patterned beads. How many plain beads will there be?
- '18' ✓
- A necklace has 2 patterned beads for every 3 plain beads. There are 12 plain beads. How many patterned beads will there be?
- '8' ✓
- A necklace has 2 patterned beads for every 3 plain beads. There are 40 beads in the whole necklace. How many patterned beads will there be?
- 12
- 14
- 16 ✓
- 18
- 20
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Worksheet
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Presentation
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Lesson Details
Key learning points
- Ratio and scaling problems can be represented in similar ways.
- Ratio and scaling problems can be solved in similar ways.
- A ratio table can be used to solve ratio and scaling problems.
Common misconception
Not identifying whether they are scaling up a part or the whole amount and how this is represented.
Ask if it is a part or the whole that you are being asked to work out and articulating where this is in the representation or ratio table.
Keywords
Scaling - Scaling is the operation of changing one value to another using multiplication or division, using the same factor or divisor
Double number line - A double number line is used to show the relationship between two values, in this case, the distances on the plan and those in real life
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