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Grade 4 Math · World 8: Measure Lab · Level 74
Metric Length
Choose centimeters, meters, or kilometers.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 74
- Welcome to the Measure Lab! Scientists measure length in metric units. A centimeter is about as wide as your fingertip.
- A meter is 100 centimeters: about one big step, or a baseball bat. A kilometer is 1,000 meters: about a 15-minute walk.
- Choose the unit that fits. A pencil: centimeters. A classroom: meters. A trip to the next town: kilometers.
- This crayon is 9 centimeters long. Line it up with 0, then read the other end.
Georgia's K-12 Mathematics Standards:
- 4.MDR.6.1 — Use the four operations to solve problems involving elapsed time to the nearest minute, intervals of time, metric measurements of liquid volumes, lengths, distances, and masses of objects, including problems involving fractions with like denominators, and also problems that require expressing measurements given in a larger unit in terms of a smaller unit, and expressing a smaller unit in terms of a larger unit based on the idea of equivalence.