Learn on PengienVision, Mathematics, Grade 4Chapter 13: Measurement: Find Equivalence in Units of Measure

Lesson 4: Equivalence with Metric Units of Length

In this Grade 4 lesson from enVision Mathematics Chapter 13, students learn to convert metric units of length — millimeters, centimeters, meters, and kilometers — using the relationships between units (e.g., 1 meter = 100 centimeters, 1 kilometer = 1,000 meters). Students practice multiplying to convert between units and compare measurements expressed in different units. The lesson builds fluency with the metric system through real-world contexts like measuring jumps and rainfall totals.

Section 1

Metric Units of Length

Property

Metric Units of Length:

1 centimeter=10 millimeters1 \text{ centimeter} = 10 \text{ millimeters}
1 meter=100 centimeters1 \text{ meter} = 100 \text{ centimeters}
1 kilometer=1000 meters1 \text{ kilometer} = 1000 \text{ meters}

The conversion factors in the metric system are all powers of 10.
This property makes the metric system easy to use, because we can convert between units simply by moving the decimal point.

Examples

  • A table is 2 meters long. To convert this to centimeters, multiply by 100:
2 m×100=200 cm2 \text{ m} \times 100 = 200 \text{ cm}
  • A small insect measures 60 millimeters long. To convert this to centimeters, divide by 10:
60÷10=6 cm60 \div 10 = 6 \text{ cm}

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Chapter 13: Measurement: Find Equivalence in Units of Measure

  1. Lesson 1

    Lesson 1: Equivalence with Customary Units of Length

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  2. Lesson 2

    Lesson 2: Equivalence with Customary Units of Capacity

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  3. Lesson 3

    Lesson 3: Equivalence with Customary Units of Weight

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  4. Lesson 4Current

    Lesson 4: Equivalence with Metric Units of Length

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  5. Lesson 5

    Lesson 5: Equivalence with Metric Units of Capacity and Mass

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  6. Lesson 6

    Lesson 6: Solve Perimeter and Area Problems

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Lesson overview

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Section 1

Metric Units of Length

Property

Metric Units of Length:

1 centimeter=10 millimeters1 \text{ centimeter} = 10 \text{ millimeters}
1 meter=100 centimeters1 \text{ meter} = 100 \text{ centimeters}
1 kilometer=1000 meters1 \text{ kilometer} = 1000 \text{ meters}

The conversion factors in the metric system are all powers of 10.
This property makes the metric system easy to use, because we can convert between units simply by moving the decimal point.

Examples

  • A table is 2 meters long. To convert this to centimeters, multiply by 100:
2 m×100=200 cm2 \text{ m} \times 100 = 200 \text{ cm}
  • A small insect measures 60 millimeters long. To convert this to centimeters, divide by 10:
60÷10=6 cm60 \div 10 = 6 \text{ cm}

Book overview

Jump across lessons in the current chapter without opening the full course modal.

Continue this chapter

Chapter 13: Measurement: Find Equivalence in Units of Measure

  1. Lesson 1

    Lesson 1: Equivalence with Customary Units of Length

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  2. Lesson 2

    Lesson 2: Equivalence with Customary Units of Capacity

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  3. Lesson 3

    Lesson 3: Equivalence with Customary Units of Weight

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  4. Lesson 4Current

    Lesson 4: Equivalence with Metric Units of Length

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  5. Lesson 5

    Lesson 5: Equivalence with Metric Units of Capacity and Mass

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  6. Lesson 6

    Lesson 6: Solve Perimeter and Area Problems

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