Solving Measurement Conversions with Proportions
Learning Objective
I can use proportions and conversions factors to convert measurements between different units.
Lesson Flow
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Units of Measure: Converting Between Metric & Household - Dosage Calculation | @LevelUpRN
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Guided Notes
Key concepts students will learn:
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To convert 132 pounds into kilograms, you can use the conversion factor that 1 kilogram equals 2.2 pounds. Using dimensional analysis, set up the equation so that pounds cancels out, leaving you with kilograms. The answer is 60 kilograms.
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To convert 7 fluid ounces into milliliters, you can use the conversion factor that 1 fluid ounce equals 30 milliliters. Using ratio and proportion, set up your known ratio on one side, and then set up your unknown ratio with X representing the unknown value. The answer is 210 milliliters.
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To convert 40 milliliters to teaspoons, you can use the conversion factor that 5 milliliters equals 1 teaspoon. Using either dimensional analysis or ratio and proportion, set up the equation so that you are solving for teaspoons. The answer is 8 teaspoons.
Practice
8 questions • Multiple choice & Short answer
Exit Ticket
“Convert 55 pounds to kilograms. (1 kilogram = 2.2 pounds). Show your work.”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
