Using Metric Units of Length Envision 2008

1 millimeter (mm) is about the thickness of a dime.

1 centimeter = 10 millimeters One centimeter is about the length of an eraser on a pencil. about 1 centimeter

1 decimeter = 10 centimeters One decimeter is about as long as your palm across. about 1 decimeter

1 meter = 1 decimeter = 100 centimeters 1 meter is about the length of a snake.

One kilometer = 1,000 meters One kilometer is about the length of 4 city blocks.

Do you know HOW? Choose the most appropriate unit to measure the length of each. millimeter centimeter decimeter meter kilometer height of a house length of a cat width of a sunflower seed distance traveled by plane

Do you UNDERSTAND? How wide is your textbook to the nearest centimeter? Explain to your shoulder partner how you measured. Jodi wants to measure the width of a narrow ribbon she is using to tie around a pinecone. Which metric unit should she use? Explain.

Independent Practice In your journal, write the most appropriate unit to measure with: millimeter centimeter decimeter meter kilometer length of a shoe height of a tree width of a strand of yarn

Independent Practice Using the items on your table, measure the objects to the nearest inch. Record your findings in your journal. pencil piece of ribbon library book

Writing to Explain Mrs. Roberts measured the height of her front door to cover it in material. She wrote down 2, but forgot to write the units. Which metric unit of measure did she most likely use?

Apply it! Mrs. Van Gorp wanted to know how many centimeters were in 2 meters, how could she find out? Mr. Chaler wanted to know how many meters were in a 5 kilometer race. How could he find out?

Apply it! Mrs. Roberts wants to know how many decimeters are in a meter, how could she find out? Mrs. Barrows wants to know how many centimeters are in a meter, how could she find out?