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What do you know about ratios? When have you seen or used ratios?
What is a ratio? How many different ways can you write a ratio?
A ratio COMPARES two quantities (numbers). A ratio shows how much of one thing you have compared to something else.
a to b a:b a b All three are read as “the ratio of a to be”
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What is an equivalent ratio? Create an example.
How many different ways can you find equivalent ratios for: 2 boys to 3 girls
How many different strategies can we share?
equivalent fractions multiplication tables tape diagram
The ratio of the length of Shanni’s ribbon to the length of Mel’s ribbon is 5 : 3. How much ribbon does Mel use if Shanni uses 45m?
The ratio of the number of laps Mason ran to the number of laps Laney ran was 2 to 3. If Mason ran 8 laps, how many did Laney run?
The ratio of the number of laps Mason ran to the number of laps Laney ran was 2 to 3. Use a table to list 4 more equivalent ratios.
The ratio of the number of laps Mason ran to the number of laps Laney ran was 2 to 3. Use a tape diagram to find how far Mason ran if Laney ran 930m.
In a bag of mixed nuts, the ratio of walnuts to cashews is 5 : 6. Use a tape diagram to determine how many walnuts are in the bag if there are 54 cashews.
On a test, the ratio of the number of problems Josie got incorrect to the number of problems she got correct is 2:9. If Josie missed 8 problems, how many did she get right?
Write all the factors for 18 Write all the factors for 100 Write all the factors for 12.
LESSON TOPIC: EQUIVALENT RATIOS LESSON OBJECTIVE: I CAN… USE TAPE DIAGRAMS TO SOLVE PROBLEMS WHEN THE PART TO PART RATIO IS GIVEN AND THE VALUE OF 1 QUANTITY.
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Ratios and Proportions Ratio: A comparison of two quantities. Example: the ratio of a to b is, where b =0 Proportion: A proportion is formed when you.
There are 16 actors sitting on chairs in a theater and 10 actors standing on a stage. What is the ratio of the number of actors standing on the stage to.
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In a bag of 8 apples, 2 of the apples are green. In a bag of 4 apples, 1 is green. Is this a proportional relationship?
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What is he doing?.
Lesson Topic: Associated Ratios, Value of a Ratio & Equivalent Ratios Lesson Objective: I can… Understand the relationship between ratios and fractions.
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