CCSS.Math.7.RP.2(NQ 2a) Rates and Unit Rates

Good morning GIRLS and BOYS,

Today we will be watching the videos in class to model what you will be doing when you get your laptops home.  Please write down all that I do in your video spiral. Please be neat and precise, but mostly accurate.  

Today's lesson is on Rates and Unit Rates. These function and look a great deal like fractions.  They have a numerator and denominator, but these are labeled.  They have different units - such as distance and time, money and time, money and measure, and so on.  A rate is this ratio of 2 different units.  A unit rate is when the denominator is 1 unit.  Sounds a bit confusing, but hang on...... An example is: Addie worked at home pulling weeds for 6 hours and earned $300.  How much did she earn each hour?

To set this up as a rate you must know the units- time and money.  You must also know what you want to find out - how much money for each hour.  With this, you can set up your FRACTION Unit- $300

6 hours

Notice the labels.... Now the denominator is hours as you want to know how much in 1 hour.

To fine the UNIT RATE: you need to get the denominator to 1 unit:

$300/6

6 hours/6

$50

1 hour

So the answer would be: Addie makes $50 / Hour.

Hang on and don't get discouraged as you will have some practice time to learn this material.  

Here are Hailee and Kaci with their solved Elephant Puzzles! They were record fast in solving this!   

Please watch the videos in the Numbers and Quantity tab above.

As always in MATH,

Mrs M