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Swimming pools lesson 1

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James Buchanan
James Buchanan

The document describes how to calculate the number of paving slabs needed for square swimming pools of different sizes. It shows that a 2m by 2m pool requires 12 slabs. Pools of different sizes are represented as grids, with each square representing 1 slab. The document asks to determine the number of slabs needed for pools up to 10m by 10m, identify a pattern, and describe a rule to calculate slabs for any sized square pool.

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and Paving Stones Part I
You are a bricklayer who contracts with swimming pool builders. Your job is to put paving slabs all the way around the pool. The slabs are heavy and expensive, so you need to work out exactly how many you need to take to the job site. The size of each slab Each grid space = 1 is one square metre. square metre Therefore a pool which is 2mx2m will require 12 paving slabs.
How many slabs would you need for this pool? Or this one?
Find how many slabs you would need for pools up to 10mx10m Can you identify a pattern? Can you describe a rule that will help you work out how many paving slabs are needed for any sized square pool? How can you test if this rule works?
Reflect Focus questions What is the rule that you worked out? How did you and your partner arrive at this rule? How did you test its accuracy? How well did it work?

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Swimming pools lesson 1

  • 2. You are a bricklayer who contracts with swimming pool builders. Your job is to put paving slabs all the way around the pool. The slabs are heavy and expensive, so you need to work out exactly how many you need to take to the job site. The size of each slab Each grid space = 1 is one square metre. square metre Therefore a pool which is 2mx2m will require 12 paving slabs.
  • 3. How many slabs would you need for this pool? Or this one?
  • 4. Find how many slabs you would need for pools up to 10mx10m Can you identify a pattern? Can you describe a rule that will help you work out how many paving slabs are needed for any sized square pool? How can you test if this rule works?
  • 5. Reflect Focus questions What is the rule that you worked out? How did you and your partner arrive at this rule? How did you test its accuracy? How well did it work?