monday math mania!!!
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Monday Math Mania!!! . 1. Take out your notebook. We have a NOTEBOOK QUIZ TODAY! 2. Warm Up: Workbook p. 52 (1-8)—be sure to LABEL your answers!!! 3. DEAR . Warm Up Answers: WB p.52 1-8. 50 miles per hour $9.40 per hour 40 pages per hour - PowerPoint PPT PresentationTRANSCRIPT
Monday Math Mania!!!
1. Take out your notebook. We have a NOTEBOOK QUIZ TODAY!2. Warm Up: Workbook p. 52 (1-8)be sure to LABEL your answers!!!3. DEAR Monday Math Mania!!!
Warm Up Answers: WB p.52 1-850 miles per hour$9.40 per hour40 pages per hour3120 words per hour311 parts per hour25 books per shelf$5 per book8 points per game1 point for correct number1 point for correct labels2 points per answer# correct16
Notebook QuizGet them ready!15 minutes maxUse pencilAnswer completelyWrite clearly
Online Timer
Lets discuss strategies for each of the 4 situations
What do you think?
Lets look back at the Similar Figures situation from the previous page now that we have many ways to set it upThe question was: How long is the corresponding side in the similar figure?The scale factor was given as 2. How do you use the scale factor to find the corresponding length? MULTIPLY the length by 2!
What is the ratio between the lengths in the similar figures? 2:1 or 1:2Now, write a proportion for this problem and solve it. Show your work! What is the missing length? 5 cm
Lets write ALL 4 different ways to solve this on the board
Make sure your notebook assignment sheet looks like this:# DATE BRIEF DESCRIPTION12-5C&S Problem 4.1, ACE 1, 2, 15-17, 23
Big Idea: Understanding Proportions
You need: Calculator4.1 Lab sheet
Open your book to page 48
Now Were ready for the Problem!Lets do Part A with a partner, then we will discuss together as a group
20/20 = 1, so the ratios will be equivalent. She divided 180 by 9 and got 20.They are equivalent because the ratios and numerators are equivalent.Yes, she found equivalent ratios.
Joey scaled up the ratiosnumerator - 8 x 10 x 2 = 160 denominator - 9 x 10 x 2 = 180
He made equivalent ratios.
$1000 = $1250 1000x = 20 (1250) X 1000x = 25,000 1000 1000 x = 25
Part 20 = x x = 2120 stations Whole 100 10,600
32 / 8 x 5 = x = 20 9 / 12 x 7 = x = 5.2525 / 5 x 7 = x = 353 / 9 x 8 = x = 8/3 or 2.66
4.65.2=3.5x 3.5 / 4.6 x 5.2 3.96 4.6 =5.2 5 / 5.2 x 4.6 ~ 4.42 y 5
58= h 4848' / 8' x 5' = h' = 30'
Make sure your notebook assignment sheet looks like this:
# DATE BRIEF DESCRIPTION12-5C&S Problem 4.1, ACE 1, 2, 15-17, 23