Unit cost

Good morning!
Schedule: 
  • Learning goals 
  • Last time
  • Unit rates/cost
  • Shopping activity 
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Slide 1: Diapositive
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Cette leçon contient 10 diapositives, avec quiz interactifs et diapositives de texte.

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Good morning!
Schedule: 
  • Learning goals 
  • Last time
  • Unit rates/cost
  • Shopping activity 

Slide 1 - Diapositive

Learning goals 
At the end of this lessons I can:
  • Use rates to determine which product is cheaper
  • Convert rates to unit rates

Slide 2 - Diapositive

What did we do last time?

Slide 3 - Carte mentale

The mobile company charges $180 for an hour of service. How many dollars are customers charged per minute?

Slide 4 - Question ouverte

Unit rates
The mobile company charges $180 for an hour of service. How many dollars are customers charged per minute?

$180 per 60 minutes 
$3 per 1 minute
÷60 
÷60 

Slide 5 - Diapositive

Unit cost 
Which apples are the cheapest? 
Think (1 min)             pair (1 min)                share  

Slide 6 - Diapositive

Unit cost 
3.99 per 2.5 kg 
divide both by 2.5
1.60 per 1 kg 
2.49 per 1.5 kg 
divide both by 1.5
1.66 per 1 kg 

2.99 per 1 kg 

Slide 7 - Diapositive

Unit cost 
3.99 per 2.5 kg 
divide both by 2.5
1.60 per 1 kg 
2.49 per 1.5 kg 
divide both by 1.5
1.66 per 1 kg 

2.99 per 1 kg 

Slide 8 - Diapositive

Let's go shopping!
With your team, and in the given time, walk around the room
and compare the 2 advertised prices. Determine which the better buy is.
Show all math work. 

Slide 9 - Diapositive

Homework
Finish the speedy animals worksheet

Slide 10 - Diapositive