Illustrative
Mathematics
K.MD Which weighs more?
Which weighs less?
Task
Materials:
Sheets of paper for each student that are folded in half with the words "Heavier" and
"Lighter" written at the top of each side.
A box of large blocks.
A box of different objects with different weights to compare with a block from the
first box. Some should be lighter than a single block and some should be heavier. The
weight differences should be fairly pronounced.
Action:
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Illustrative
Mathematics
The students begin by choosing a block that they will use to compare with other
objects.
Students will then choose an item from the second box and compare its weight to
their block. They then draw a picture of it under "Heavier" or "Lighter" depending
which applies. They continue to choose objects from the box to measure against their
block until they have two or three drawings on each side of their sheet.
K.MD Which weighs more? Which weighs less?
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