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2nd grade · Math · Unit 13 of 19

Measuring

Centimeters and meters

What your child practices

Measuring with a ruler from zero and choosing between centimeters and meters.

Texas Essential Knowledge and Skills (TEKS) teks student expectation: 2.9(A); 2.9(D) · measuring length in metric units with rulers and meter sticks

How we explain it

Children can open this short lesson before they practice.

  1. Centimeters (cm) measure short lengths.
  2. Meters (m) measure long lengths.
  3. Line up the 0 on the ruler with one end.

Example: Would you measure a pencil in cm or m? A pencil is short. Short things use centimeters. Answer: cm

Measuring in Texas

In the Texas Essential Knowledge and Skills (TEKS), this is unit 13 of 19 in 2nd grade Math, after Shapes and before Inches, Feet & Yards.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: Texas Education Agency (TEA)

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    How long is the carrot?

    • 13 cm
    • 10 cm
    • 9 cm

  2. Question 2

    How many centimeters make 1 meter?

    📏
    • 97
    • 95
    • 100

  3. Question 3

    Would you measure a ladybug in centimeters or meters?

    🐞
    • centimeters
    • meters

  4. Question 4

    How long is the paintbrush?

    • 3 cm
    • 4 cm
    • 7 cm

  5. Question 5

    Would you measure a school bus in centimeters or meters?

    🚌
    • centimeters
    • meters

  6. Question 6

    How long is the pencil?

    • 11 cm
    • 9 cm
    • 10 cm

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