Math Warm Up: Which One Doesn't Belong?
Look at the Graphic below and decide "which one doesn't belong"
What justification could you use to say that 8 doesn’t belong?
What justification could Student B say that 64 doesn't belong?
What other justifications could student A have used to decide that 27 does not belong?
How can students A, B, and C all be correct even though they each chose different values?
Today's Lesson: Ratios
Ratios are used to compare values. They tell us how much of one thing there is compared to another. For example, ratios can be used to compare the number of cars to motorcycles on the road. If we have a total of 12 cars on the road, where two are motorcycles and ten are cars, we can write that in ratio form as 2:12 (motorcycles:cars). We can also write it in factor form as 2/12. To compare the number of cars to motorcycles, we can simply rewrite our ratio with the number of cars first as 12:2 (cars:motorcycles ) or 12/2.
3 Acts Math Task: World Fastest Dog
What do you notice and What do you wonder?
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