5th Grade Math
Mr. Knostman (937)573-7212
Chapter 18
Goals
Notes
Chapter
Read Pages
Lesson
8/18/2016
Algebra: Ratio and Proportion
Problem
Pages
Problem #'s
Comments
A Ratio can be written in a fraction form, but it is not always a part to a whole.
Sometimes as Ratio is a part to a part AND sometimes a Ratio is not the even the same units.
18 - 1
484
484 - 485 1 - 14, Explain Your Thinking, 24
18 - 2
18 - 3
487
11 - 23
# 19) Reduce 15/25 to lowest terms and then do the problem. Now do # 20 the same way.
488
A Unit Rate is just a fraction with the denominator = 1
489 - 490
Quick Check
18 - 4
Reduce ratios just like you reduce fractions. 3 to 6 equals 1 to 2
486
492 - 493
1 - 27
491
1 - 10
Another Example Page 493:
Check these answers with me before going on.
Write one equivalent ratio in lowest terms.
First try to reduce the fraction, then make an equivalent fraction.
Then, use CROSS MULTIPLICATION if reducing doesn't work.
Daily Review - Test Prep
18 - 5
Map
Skills
18 - 6
Quick Check
494
7 - 18, 27 - 36
495
40 - 44
4-27
496 - 497
497 - 498
499
499
500
500
1-4
501
1-9
Chapter 18 Review Test
502
Proportions are just equivalent fractions.
1-4
#17) 1/2 in : 5 mi is the same as 1 in : 10 mi
11 - 19
SET D and E All Problems
503
Chapter 18 Vocab: terms, ratio, equivalent ratio, simplest form, rate, unit rate, per, speed, proportion, cross product
(cross multiply), scale drawing, scale, similar figures