Dimensional Analysis Part 1

Dimensional Analysis Part 1

Chapter 2:

The Nurse, The Math, The Meds

Poll

How do you feel about Metric conversions?

• Got it - I can visualize the prefix chart and convert both ways!

• Pretty Good - I can convert both ways but I might have to think about it for a minute.

• OK - struggle a little bit, but if I have the chart in front of me I am fine.

• Not so great - I need more practice.

#1

How many pounds are in 60 kg?

Conversion factor: 2.2 lbs = 1 kg

Fill in the Blanks

#1

 $60\ kg\cdot\frac{2.2\ lbs}{1\ kg}=?$  

#2

How many meters are in 30 yards?

Conversion factors: 1 m = 1.09 yards

Fill in the Blanks

#2
 $30\ yards\ \cdot\frac{1\ meter}{1.09\ yards}=?$  

#3

How many syringes can be bought for $100? Each syringe costs $8. How much money will be left over?

Fill in the Blanks

#3
 $100\ dollars\ \cdot\frac{1\ syringe}{8\ dollars}=?$  

#4

How many kilometers are in 50 miles to the nearest tenth?

Conversion factor: 1 km = 0.6 miles

Fill in the Blanks

#4

 $50\ miles\cdot\frac{1\ km}{0.6\ miles}=?$  

Poll

How are you feeling about these 1-step DA problems?

• Got it!

• Pretty Good

• OK

• Not so great

#5

How many millimeters are in 1 inch?

Conversion factors: 10 mm = 1 cm, and 2.5 cm = 1 inch

Fill in the Blanks

#5

 $1\ inch\ \cdot\frac{2.5\ cm}{1\ inch}\cdot\frac{10\ mm}{1\ cm}=?$  

#6

How many inches are in 50 yards?

Conversion factors: 12 inches = 1 foot, and 3 feet = 1 yard

Fill in the Blanks

#6

 $50\ yards\cdot\frac{3\ feet}{1\ yard}\cdot\frac{12\ in}{1\ foot}=?$  

#7

How many micrograms are in 2 grams of sugar? Do you remember the conversion?

Fill in the Blanks

#7

 $2\ grams\cdot\frac{1000\ mg}{1\ g}\cdot\frac{1000mcg}{1\ mg}=?$  

#8

How many centimeters are in a foot?

Conversion factors: 2.5 cm = 1 inch, and 12 inches = 1 foot

Fill in the Blanks

#8

 $1\ ft\cdot\frac{12\ in}{1\ ft}\cdot\frac{2.5\ cm}{1\ in}=?$  

#9

How many nurse assistants are needed for a 300-bed hospital?

Conversion factors: 1 nurse per 10 beds, and 2 NA for each nurse.

Fill in the Blanks

#9
 $300\ beds\cdot\frac{1\ RN}{10\ beds}\cdot\frac{2\ NA}{1\ RN}=?$ 

#10

How many milliliters are in 3 Tbsp of milk?

Conversion factors: 5 mL = 1 tsp, and 3 tsp = 1 Tbsp

Fill in the Blanks

#10

 $3\ Tbsp\cdot\frac{3\ tsp}{1\ Tbsp}\cdot\frac{5\ mL}{1\ tsp}=?$  

#11

How many hours are in 1800 seconds?

Conversion factors: 60 seconds = 1 minute, & 60 minutes = 1 hour

Fill in the Blanks

#11
 $1800\ s\cdot\frac{1\ \min}{60\ s}\cdot\frac{1\ hr}{60\ \min}=?$  

#12

How many cups are in 2 qt?

Conversion factors: 2 cups = 1 pt, and 2 pt = 1 qt

Fill in the Blanks

#12

 $2\ qt\cdot\frac{2\ pt}{1\ qt}\cdot\frac{2\ cups}{1\ pt}=?$  

#13

How many tablespoonfuls are in a cup of fluid?

Conversion factors: 2 Tbsp = 1 oz, and 8 oz = 1 cup

Fill in the Blanks

#13
 $1\ cup\cdot\frac{8\ oz}{1\ cup}\cdot\frac{2\ Tbsp}{1\ oz}=?$  

Poll

#14 - Challenge

How many seconds are in a year?

• 31,449,600 seconds

• 31,536,000 seconds

• 32,140,800 seconds

• 31,104,000 seconds

Multiple Choice

#15 - Challenge

Pam has been working at a fast food restaurant for 35 years wrapping burgers. Each hour she wraps 184 burgers. She works 8 hours per day, 5 days a week. How many burgers has she wrapped? (52 weeks = 1 year)

• 56,259,800 burgers

• 18,753,300 burgers

• 40,185,600 burgers

• 13,395,200 burgers

Practice...Practice...Practice!

Module 1 in BlackBoard -

Look for "Mulholland Chapter 3 Interactive Calculation Activity"