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3.3 Proportions

Learn how to use proportions to determine if things are fair. Explore different rates and determine if they form a proportion. Practice with examples and improve your math skills.

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3.3 Proportions

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  1. 3.3 Proportions How can you use proportions to determine when things are fair?

  2. Period 5 Rock Stars!Chosen by your peers 

  3. Math Minute Extension Time • If you are an A-Team Member, you may go to the following websites: • Mathplayground.com • Funbrain.com • If you are NOT an A-Team Member, your computer needs to be closed. You should be working on one of the following things: • Incomplete/missing work • D-11 Math Review 1.4 DUE FRIDAY • Extra Credit

  4. Announcements • D-11 Math Review 1.4 DUE!!! • December Newsletter DUE!!! • Winter Math MAP make-ups TBD • STAR Math Test on Monday

  5. Results from Last Class • Wednesday’s Ticket Out  • 14 students got it!  • 2 students didn’t finish :-I • 4 students didn’t attempt it  •  Need to work on labeling the value with units • Winter Math MAP Results • All but two students finished • Most students made growth 

  6. Data from Chapter 3 Pre-Test

  7. New Groups/New Partners – Period 5 Red: Darius, Evelyn, Reyna, Leslie, Juan, and David Blue: Kendrick, Anastaja, Francisco, Deasia, Miguel, Nathan, and Katie Yellow: Sheahona, Samantha, Rachel, Luis, Brody, and Sam Orange: Brandon, Jenny, Bela, Wendy, Joseph, and Yoanna Clockwise from bottom left

  8. Class Reflection for Moving Forward

  9. Get Materials Ready Set-up your record sheet with a half slip of paper at the table or use your own paper Open your textbook to p. 110 Name Date Period

  10. 3.3 Start ThinkingHow Do You Determine Fairness? Are you paying the same amount each time? How do you know?

  11. Lesson Check-In

  12. MODEL – Determining ProportionsTEACHER: p. 110 Part B

  13. MODEL – Determining ProportionsTEACHER: p. 110 Part B Answer: First day 45 miles per hour; Second day 40 miles per hour

  14. MODEL – Determining ProportionsCLASS: p. 110 Part C

  15. MODEL – Determining ProportionsCLASS: p. 110 Part C Answer: Both days 75 calories per mile

  16. MODEL – Determining ProportionsPARTNER: p. 110 Part D

  17. MODEL – Determining ProportionsPARTNER: p. 110 Part D Answer: First day $0.45 per song, Second day $0.50 per song

  18. Lesson Check-In

  19. Partner Book Practice p. 114 #18-20Pick 2 SHOW YOUR WORK! Tell whether the two rates form a proportion. • #18 12 players from 21 teams; 15 players from 24 teams • #19 440 calories in 4 servings; 300 calories in 3 servings • #20 120 units made in 5 days; 88 units made in 4 days

  20. Partner Book Practice p. 114 #18-20Pick 2 ANSWER KEY Tell whether the two rates form a proportion. • #18 12 players from 21 teams; 15 players from 24 teams • Answer: 1.75; 1.6  Not proportion • #19 440 calories in 4 servings; 300 calories in 3 servings • 110; 100  Not proportional • #20 120 units made in 5 days; 88 units made in 4 days • 24; 22  Not proportional

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