Grades 3 to 5 ยท 8 lessons
Measurement and units
Free measurement and units course for grades 3 to 5. Eight lessons: length, mass, capacity, converting units, time and money.
Each lesson has one idea, one worked example, practice questions and one puzzle. Work through the list in order, or jump to the lesson you need. Every lesson has a matching practice page with ten more questions and answers.
All eight lessons are ready. Start with lesson 1, and use the practice page after each lesson to check that the idea has sunk in.
Lessons
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Length in metric units
Millimetres, centimetres, metres and kilometres.
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Length in customary units
Inches, feet, yards and miles.
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Mass and weight
Grams and kilograms, ounces and pounds.
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Capacity and volume
Millilitres and litres, cups, pints, quarts and gallons.
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Converting units
Multiply or divide by the right conversion fact.
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Telling time and elapsed time
Read a clock and work out how much time passes.
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Money and making change
Coins, notes and change counted up.
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Measurement word problems
Read, choose the operation, compute and label the unit.
What you will learn
The course starts with length: millimetres, centimetres, metres and kilometres, then inches, feet, yards and miles. Next come mass and weight, then capacity and volume, with grams, kilograms, millilitres, litres, cups and gallons. Once the units are familiar, you learn one method for converting between them. The last lessons tell time and work out elapsed time, count coins and make change, and finish with mixed measurement word problems where the unit is the clue to the right operation.
How to use the course
- Read one lesson. It takes about five minutes.
- Study the worked example and the diagrams.
- Answer the five "Try it" questions and check your answers.
- Open the practice page for ten more questions.
- Move to the next lesson when you feel steady.
There are 8 lessons and 8 practice pages, all free and without an account.
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