MATH-a- licious Monday!
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MATH-a-licious Monday! 1. Change group roles. 2. Warm Up: Workbook p. 34 (#5 a-e) Show your work! Find BOTH “x” and “y” Use either scale factor or ratios. 3. Write a question that deals with ratios on the note card that you think will be a challenge for others to solve. Be sure you solve it on a separate piece of paper as the answer key. ONLINE TIMER for 10 minutes
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MATH-a- licious Monday!. Change group roles. Warm Up: Workbook p. 34 (#5 a-e) Show your work! Find BOTH “x” and “y” Use either scale factor or ratios. - PowerPoint PPT Presentation
Transcript of MATH-a- licious Monday!
MATH-a-licious Monday!1. Change group roles.
2. Warm Up: Workbook p. 34 (#5 a-e)Show your work! Find BOTH “x” and “y” Use either scale factor or ratios.
3. Write a question that deals with ratios on the note card that you think will be a challenge for others to solve. Be sure you solve it on a separate piece of paper as the answer key.
ONLINE TIMER for 10 minutes
Warm Up Answers: WB 34 (#7-11)7) X = 4 2/3 y = 8
8) X = 18 y = 24
9) X = 21 y = 24
10) X = 20 y = 9
11) X = 21.6 y = 20
# correct
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Runners go get…New Notebook Assignment Sheets Today’s Lab Sheet------------------------------------------------------
Make sure your Notebook Assignment Sheet looks like this:
# Date Book/ Brief Description1. 11-14 C&S Problem 2.1, ACE 1-3, 9-13
BIG IDEA: Comparing ratios, percents, and fractions
Launch…How many of you have ever
made orange juice from a can before?
What was involved in making it?
Mix A 2/5 40%Mix B 5/14 35.7%Mix C 1/3 33.3%Mix D 3/8 37.5%
Remember
part-to
whole!
Mix A 2/5 40%Mix B 5/14 35.7%Mix C 1/3 33.3%Mix D 3/8 37.5%
Nope! Yes! Because you need a part-to-whole
comparison!
Mix A - 5 cups = 1 batch, 1 batch = 10 people, 240/10 = 24 batches
Mix B - 14 cups = 1 batch, 1 batch = 28 people
240/28 = 8.57, so 9 batches
Mix C - 3 cups = 1 batch, 1 batch = 6 people
240/6 = 40 batches
Mix D - 8 cups = 1 batch, 1 batch = 16 people
240/16 = 15 batches
Mix A - 24 batches 24 x 2 = 48c. concentrate 24 x 3 = 72c. H2O
Mix B - 9 batches9 x 5 = 45c.
concentrate9 x 9 = 81c. of H2O Mix C - 40 batches40 x 1 = 40c.
concentrate40 x 2 = 80c. H2OMix D - 15 batches15 x 3 = 45c.
concentrate15 x 5 = 75c. H2O
Make a table to help organize!
Look at next slide
MIX A
MIX B
MIX C
MIX D
CONCENTRATE to WATER
2 to 3 5 to 9 1 to 2 3 to 5
# BATCHES 24 8.6 40 15
CUPS of CONCENTRATE
48 ~43 40 45
CUPS of WATER 72 ~77 80 75
TOTAL CUPS of JUICE
120 120 120 120
Discuss this question with your group and be ready to respond in 1 minute or less… On the previous slide you saw that
43 and 77 were approximations for Mix B...
Why can’t you make EXACTLY 120 cups with whole numbers by scaling up the recipe?
MIX A MIX B MIX C MIX D
CONCENTRATE 2/5 5/14 1/3 3/8
WATER 3/5 9/14 2/3 5/8
TOTAL 5/5 = 1
14/14 = 1
3/3 = 1
8/8 = 1
Make sure your Notebook Assignment Sheet looks like this:
# Date Book/ Brief Description
1. 11-14 C&S Problem 2.1, ACE 1-3, 9-13
Begin your ACE questions…
