this correctly by listing the

different key measurement on the

same row.

About our Project

**Objectives**

**Definition**

**Other**

**Problems**

**Mistakes**

Rates

Ratios

Proportions

.

.

What You Need to Know:

1. Addition : A operation that shows the total amount of objects.

2. Subtraction : Taking one amount away from the another.

3. Division : Separating numbers into Parts.

4. Multiplication : The process of combining numbers

Rates: Rates are ratios that compare two or more quantities of different measures.

Ratios: Ratios show how two or more quantities are related.

Proportions: Proportions are two ratios that are equal.

Problems

PLATFORMS

Social

SOCIAL

**Rates, Ratios, & Proportions**

**Today your going to learn about...**

**By Erin W. and Vanessa C.**

Objectives

At a pet store, the ratio of bunnies to the total amount of pets is 4 to 5. Write the ratio in different 3 ways.

I want to by a box of cereal. There are 2 choices. A 20oz box for $3.60 and a 15 oz box for $2.40 which is a better buy and why.

Common Mistakes & Traps

Real World Application

Students will be able to

understand how to solve

problems using ratios, rates,

and proportions.

#1

Ratios

#3

#2

Rates

Explanation

Explanation

Proportions

Explanation

Answer

#1 4:5

#2 4 to 5

#3 4/5

This would be the answer because when you want to write a ratio you would have to write using a colon, the word to, or a fraction symbol.(/)

Answer

Billy Bob Joe earns $24.90 watching his nephews for 6 hours. Which of these represents his rate of pay per hour.

a.$0.24/hour

b.$1.32/hour

c.$ $4.15/hour

d.$3.86/hour

e.$24.90/hour

This is the answer because

in order to get the answer we

had to divide 24.90 and 6. That equaled 4.15. So the answer is c.

Ratios

Rates

Proportions

Students sometimes forget to express the ratio in simplest form.

Example for Ratios

Express 100 to 50 as a ratio.

100 : 50 100 : 50

Incorrect

Correct

5 : 10 5 : 10

1 : 2

Example for Rates

Example for Proportions

Students can remember this by dividing w/ bigger numbers

Answer

$ 24 x

------------ = -------------

100 oz 1 oz

100 24

------------ = -----------

x 1 oz

Incorrect

Correct

Students often forget how to set up the proportions.

You Try

One day I went to the store and I bumped in

to an old lady named Nacho. Nacho had told

me that she forgot how to do math. She wanted me to help her make the decision to if she should buy "Ming's Sushi Bars" or " Granny's Spicy-Hot Tacos."

The Sushi bars cost $7.99 for 9 bars. The tacos cost 6.99 for 7 tacos. Which is the better buy.

I want to buy tooth paste. There are 2 choices The 8oz one for $2.99 of the 15 oz one for $4.49 witch is a better deal. Explain!

You Try

What is the ratio form fish to the total amount of pets.

What is the ratio from cats to dogs

What is the ratio from turtles to cats.

Students often mistake ratios for rates because they are similar in ways.

The answer would be the

20oz one because it cost less than the other option. Therefore, it has a better price.

Incorrect Correct

Rate- Dogs - Cats

Ratio - Girls - Boys

Rate - Miles - Gas used

Ratio - Girls - Boys

The better buy would be the Sushi Bars because Bars it cost less.

You Try

Joe mows 7 lawns per 4 hours. What is another ways of saying this rate?

Students can remember

this by practicing more with both so they know the differences.

Students should remember this by listing the two

main measures in the same row.

We hope you learned the

main idea of ratios,rates,

and Proportions

What we learned:

We learned some ways to prevent Mistakes