Page 101 - Mathematics GRADE 9, DE-STREAMED (MTH1W)

Teacher Prompts
• When creating a table of values for the linear relation y = − 3 x + 1, what x-values would be 44
considered “easiest” to use? How do you know?
• What steps would you follow to get the output of the relation y = (− 1) x + 3 for various inputs
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using technology?
• What strategies would you use to determine 12 of −14 and 37 of 49?
• If you are 5’ 3” and you are growing or shrinking 18 of an inch each year, how would you calculate
your new height?
• What steps could you follow when subtracting a mixed number from another mixed number with
a different denominator?
• What are some values that would make the following statement true? ____ is 27 of _____.
Sample Tasks
1. Present the following scenario: A recipe calls for 2 1 cups of flour, 1 1 cups of granulated sugar, and 24
23 cup of butter. Have students determine the amount of ingredients in the mixing bowl using relational rods, fraction bars, and other tools. Have students repeat the task, changing the
ingredient measurements to grams and millilitres.
2. Present the following scenario: A school play requires 5 costumes, each requiring 1 3 yards of fabric.
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Have students use various tools to determine how much more fabric will be needed if the play receives a donation of 8 yards of fabric.
3. Have students determine the perimeter and the area of a rectangular piece of plywood with a length of 33 ft and a width of 11 ft.
4. Havestudentscreateatableofvaluesforthelinearrelationy=−3x+1forx=−2,−1,0,1,2,3,4. 44
5. Present the following scenario: A 70 L rain barrel loses 34 L of water every minute. Have students create a table of values, using technology, that shows the amount of water in the barrel from the
time the barrel is full to when it is empty.
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