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Check your answers! Item Pink Green Tissues $0.02/tissue (0.020)
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Happy Monday! Please write down the HW for the week in your agenda.
Then, turn in your poster (front table). Be sure the checklist is attached to the back! Next, clear everything except a pencil.
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Think, Pair, Share In your own words, what is a RATIO?
Day 1 starts here. Do Ratio, Proportion, Unit Rate GO BEFORE going to next slide.
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EQ: How are proportions used to solve real-world problems?
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Definition: Two equivalent (equal) ratios
What is a proportion? Definition: Two equivalent (equal) ratios 2:3 as 6:9 2 is to 3 as 6 is to 9 Start Proportion Frayer GO with this slide.
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Do 2 ratios form a proportion?
Cross-products Scale factor •3 = •3 ≠ •3 = •3 = On GO yes no yes no
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Review… Proportional?
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Proportional?
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Is it a proportion?
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Is it a proportion?
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Think, Pair, Share Tell your partner what x would be in this proportion:
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How are proportions solved?
1) Reduce the fractions Try on GO, then discuss reducing first. 2) Set the cross-products equal to each other 12 = 3x 4 = x
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Try this one:
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Soooo … Why do we need to learn about proportions???
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EQ: How are proportions used to solve real-world problems?
Day 2 starts here
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4in. per 10min. is to x in. per 20 min.
Proportion Problems Example: 4in. per 10min. is to x in. per 20 min. Be consistent in placing information!
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Word Problems Make sure units match in the proportion
Again, be consistent in placing information Solve by cross-multiplying
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Circle & square the two things that match
REMINDER!! Circle & square the two things that match
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Let’s try it!! A snowstorm dumped 18 inches of snow in a 12-hour period. How many inches were falling per hour? 9 = 6x x = 1.5in
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Think, Pair, Share Discuss HOW you would solve this word problem: Shawna reduced the size of a rectangle to a height of 2 in. What is the new width if it was originally 24 in wide and 12 in tall?
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