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Assess Yourself

How well do you understand the ideas in this lesson?

Goal:

Goal:

Show What You Know!

Are you ready to take this lesson's quiz? These questions will help you find out. Go back to the lesson if you do not know an answer.

Which object is 86 centimeters long?

  1. mitten measuring 10 cm long.
  2. snowflake measuring 3 cm long.

That is right! The snowboard is 86 cm long because it ends at 86 cm on the meter stick.

The snowboard is 86 cm long because it ends at 86 cm on the meter stick.

The snowboard is 86 cm long because it ends at 86 cm on the meter stick.

How tall is the mug?

mug next to a ruler

  1. 85 cm
  2. 39 cm

Yes! The mug is 15 cm tall.

The mug is 15 cm tall. It lines up with 0 cm and 15 cm on the ruler.

The mug is 15 cm tall. It lines up with 0 cm and 15 cm on the ruler.

How long are the goggles?

ALTTEXT: Enter key opens full-screen view with caption; escape key exits full screen.
goggles above meter stick

Click image to enlarge

  1. 20 cm
  2. 13 cm

The goggles are 45 cm long. One end of the goggles is at 0 cm, and the other end is at 45 cm on the meter stick.

The goggles are 45 cm long. One end of the goggles is at 0 cm, and the other end is at 45 cm on the meter stick.

Yes! The goggles are 45 cm long.

Which object is 30 centimeters long?

  1. glove measuring 26 cm long.
  2. scarf measuring 12 cm long.

The scarf is 30 cm long because it ends at 30 cm on the meter stick.

That is right! The scarf is 30 cm long because it ends at 30 cm on the meter stick.

The scarf is 30 cm long because it ends at 30 cm on the meter stick.

How tall is the gift?

gift next to a ruler

  1. 3 cm
  2. 74 cm

The gift is 22 cm tall. It lines up with 0 cm and 22 cm on the ruler.

The gift is 22 cm tall. It lines up with 0 cm and 22 cm on the ruler.

Yes! The gift is 22 cm tall.

Which object is 25 centimeters long?

  1. gloves measuring 10 cm long.
  2. snowflake measuring 3 cm long.

That is right! The mitten is 25 cm long because it ends at 25 cm on the ruler.

The mitten is 25 cm long because it ends at 25 cm on the ruler.

The mitten is 25 cm long because it ends at 25 cm on the ruler.

How long is the sweater?

ALTTEXT: Enter key opens full-screen view with caption; escape key exits full screen.
sweater above meter stick

  1. 12 cm
  2. 1 m

The sweater is 81 cm long. One end of the sweater is at 0 cm, and the other end is at 81 cm on the meter stick.

Yes! The sweater is 81 cm long.

The sweater is 81 cm long. One end of the sweater is at 0 cm, and the other end is at 81 cm on the meter stick.

How long is the skate?

skate above ruler

  1. 7 cm
  2. 14 m

Yes! The skate is 26 cm long.

The skate is 26 cm long. One end of the skate is at 0 cm, and the other end is at 26 cm on the ruler.

The skate is 26 cm long. One end of the skate is at 0 cm, and the other end is at 26 cm on the ruler.

How tall is the ski?

ALTTEXT: Enter key opens full-screen view with caption; escape key exits full screen.
ski next to meter stick

Click image to enlarge

  1. 2 cm
  2. 16 cm

The ski is 100 cm tall. It lines up with 100 cm on the meter stick.

The ski is 100 cm tall. It lines up with 100 cm on the meter stick.

Yes! The ski is 100 cm tall.

Which object is 3 centimeters long?

  1. gift measuring 13 cm long.
  2. cup measuring 15 cm long.

The snowflake is 3 cm long because it ends at 3 cm on the ruler.

The snowflake is 3 cm long because it ends at 3 cm on the ruler.

That is right! The snowflake is 3 cm long because it ends at 3 cm on the ruler.

Summary

Questions answered correctly:

Questions answered incorrectly: