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Introduction to Unit Conversion - Lecture Slides | NSG 131, Study notes of Nursing

Material Type: Notes; Class: Foundations in Nursing I; Subject: Nursing; University: Yavapai College; Term: Unknown 1989;

Typology: Study notes

Pre 2010

Uploaded on 08/18/2009

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Slide 7 Nsg 131 Introduction to Unit Conversion
Example Problem: How many quarts are in 2 gallons of milk?
Introduction to Conversion
Here are the 5 basic steps to change from one unit to another
Step 1 - Identify that you need to convert
Step 2 Write down what you have
Step 3 Write down your equivalent fraction
Step 4 Reduce units
Step 5 Perform the math
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Nsg 131 Introduction to Unit Conversion
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Slide 7 Nsg 131 Introduction to Unit Conversion

Example Problem: How many quarts are in 2 gallons of milk?

Introduction to Conversion

Here are the 5 basic steps to change from one unit to another Step 1 - Identify that you need to convert Step 2 – Write down what you have Step 3 – Write down your equivalent fraction Step 4 – Reduce units Step 5 – Perform the math

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Slide 8

Introduction to Conversion

Step 1 - Identify that you need to convert

 Look for the key words such as “equivalent” or “convert”  Another clue is that the question asks for how many of one type of unit is in a second type of unit  For example : How many quarts are in 2 gallons of milk?

Introduction to Conversion

Step 2 Write down what you have.

 Our example : How many quarts are in 2 gallons of milk?  What do I start with? I have 2 gallons of milk. Write the amount you have as a fraction with the bottom number being one. (Writing the amount as a fraction will help us when we multiply later.)

gallons

Introduction to relating units Which way should I write my relating units? How to decide???

Slide 13

Introduction to relating units

How to decide???

It’s all about balance!

We’ll balance the top with

the bottom.

Slide 15

Introduction to relating units

My first fraction has gallons on top My next fraction needs to have gallons on the bottom

Slide 16

Introduction to relating units

Step 3 Write down your equivalent fraction  My first fraction has gallons on top  My next fraction needs to have gallons on the bottom

2 1 gallons 2 1 gallons^4 1 quarts gallon x Here’s what we write:

Slide 17

Introduction to Conversion

These are the steps we used. 1. Determine the need to perform a conversion (key words “equivalent to”, “convert”)

_2. Write down the starting term

  1. Find an equivalent fraction for the units. Write the equivalency_ down next to the starting term with the units you want to _eliminate on the bottom
  2. Reduce the units (Eliminate only the words that match in the top_ and bottom of your fractions.) When you are finished you should _have only the terms you are looking for left.
  3. Perform the math operations and reduce your answer. (In some_ calculations you may need to round as specified by your instructions.)