What is best? 20oz popcorn for $4.50 or 32 oz popcorn for $7.00 ? $ 4.50 / 20 = $0.225 per oz so $0.23 Here is the Unit Cost: $7.00 / 32 = $ per oz so $0.22 So the lowest Unit Price (and the best bargain) is 32oz for $7.00 Bell Work

A ratio is the comparison of two numbers with the same units by division. A ratio may be written in three ways. What ratios can we form from the tiles above? 12 to 8

Create as many ratios as possible. Write each ratio three different ways.

Simplest Form Write the ratio 50 to 300 in simplest form.

Write the ratio of filled cells to total cells? The ratio illustrated here is four filled cells to ten total cells. The ratio shown here is two filled cells to five total cells. How are they equivalent?

Unit Rate To find the Unit Rate, you would find the cost or amount for 1. Or the rate when the denominator is 1. “How much for just 1?”

The cost of a 12-ounce box of Cheerios is $3.29. Publix brand Cheerios cost $4.89 for an 18-ounce box. Find the unit rate to find the better buy.

How can you show an infinite number of possible answers? Egg salad: 2 pound for $6 You can display all the possibilities in a proportional relationship by graphing! 1 pound for $5 2 pounds for $6 20 pounds for $100 1 pound for $3 6 pounds for $18

Let’s Review Core Lesson 2 pounds for $6 Weight (lb.) Cost ($)

Let’s Review Core Lesson Weight (lb.) Cost ($) Cost ($) Weight (lb.)

Let’s Review Core Lesson Distance (mi.) Time (hr.) 30 miles in 2 hours 45 miles in 3 hours 15 miles in 1 hour

Let’s Review Guided Practice Graph the proportional relationship “2 pounds of prime rib for $11.” Cost ($) Weight (lb.) Cost ($)

Let’s Review Guided Practice State in words the proportional relationship shown here. (There are many correct answers!) Distance (ft.) Time (min.) 2 feet per min

Let’s Review Extension Activities Graph “a loss of 2 dollars per day.” Discuss why the graph is in the fourth quadrant. Day ($) Day$

Let’s Review Quick Quiz Graph the proportional relationship “15 miles in 3 hours.” You Try: hours Miles

Let’s Review Quick Quiz State in words the proportional relationship shown here. (There are many correct answers!) Cost ($) Weight (ounces) You Try 5oz for $2

Skills Check! When you finish turn your paper over and put it in the corner of your desk. Silent read, work on other homework or practice more problems. No talking. Practice: Worksheet