Subscribe

2nd grade · Math · Unit 5 of 17

Measuring

Centimeters and meters

What your child practices

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

Alabama Course of Study content standard: 2.17; 2.19 · measuring and estimating lengths in centimeters and meters

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 Alabama

In the Alabama Course of Study, this is unit 5 of 17 in 2nd grade Math, after Patterns and before Shapes.

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: Alabama State Department of Education (ALSDE)

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 pencil?

    • 11 cm
    • 8 cm
    • 12 cm

  2. Question 2

    Would you measure a crayon in centimeters or meters?

    🖍️
    • meters
    • centimeters

  3. Question 3

    How long is the carrot?

    • 6 cm
    • 13 cm
    • 3 cm

  4. Question 4

    How long is the crayon?

    • 8 cm
    • 13 cm
    • 14 cm

  5. Question 5

    How long is the key?

    • 4 cm
    • 3 cm
    • 1 cm

  6. Question 6

    Would you measure a swimming pool in centimeters or meters?

    🏊
    • meters
    • centimeters

More 2nd grade