Part I Qualitative vs. Quantitative, Dimensional Analysis, and Growth

A. Give two examples of qualitative observation and two of quantitative observation.

Qualitative

1.  My dog, Izzy, is the sweetest, cutest dog I have ever met.

2.  My purse is periwinkle. 

Quantitative

1.  Our home averages 68 degrees Fahrenheit in the winter. 

2.  There are 4 Juniper trees, 1 Cedar tree, and 5 Pinon Pines in our back yard.

B. Dimensional Analysis

Step 1                                                                                   My Problem

Identify units to be converted.                                  A four-pound bass weighs how many grams?

.

Step 2

Find equivalent conversion units.                             1 Pound = 453.592 Grams

Step 3

Set up proportions using multiplication                  4 X 453.592 Grams

or division so you end up with the                                                  

units you want.                                                                                                                

Step 4                                                                               4 Pounds = 1814.368  Grams

Solve and cross out matching unit labels.                                                                       

You will see an answer with the correct units.