Students discuss why the tapes are different lengths. Students listen to and discuss a story about nonstandard units of measure. Students discuss what they now know about measuring. Students measure the lengths of objects using various sets of standard units. Students record the results.
Students compare and discuss their results.
Students use coffee stirrers to measure the lengths of objects. Students record their results by gluing the coffee stirrers to a length of adding machine tape matched to the length of the object. Students record, compare, and discuss their results. Students label their results with the name of the unit.