Vocabulary Difference in length: how much longer or how much shorter one object is than the other
Standard (Customary) Units of Measurement: inch = thumb-to-knuckle length foot = 12 inches yard = 3 feet (36 inches)
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Notes Steps: 1. Measure the two objects using the appropriate tool. 2. Draw a number line and write the longest measurement on the end. 3. Starting on the longest measurement, count back to the shortest measurement. 4. Record how much longer or shorter the object is.
Metric Units of Measurement: one centimeter = width of pinky 25 centimeters = one ruler one meter = four rulers (100 cm)
Structured Guided Practice (A / B Partners Practice) Directions: Solve the problems.
1. Ask student partners to determine who has the longer foot.
Record:
’s foot is longer by
centimeters.
’s foot is shorter by
centimeters.
2. Tell the students you want to determine how much longer the bed is than the boy who will be sleeping in it. The bed is 75 inches long. The boy’s length is 60 inches long.
Record: The bed is longer by The boy is shorter by
