Measurement and Geometry

Activity 8: Drip, Drip, Drip

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11.View and trace the graph.

* )

! or " to trace until X=0

Ask: What is the value of Y? What does this point represent? (When time = 0, there is no water.)

12.Now look at this same information in a table.

-f (above the ' key)

The screen should look like the one at the right.

-i (above the * key)

13.Scroll down (#) in the X column to 24. Ask:

What is in the Y1 column? What does this value mean?

Is this the same amount of water that you calculated on the Home screen for 1 day?

Wrap-up for Part A

♦Using the table, have students answer these questions. How much water would be wasted if the drip continued over a weekend?

How much water would be wasted over the Christmas holiday?

How much water would be wasted in a year?

How long would it take to fill our classroom with water?

♦Make sure students have completed their activity sheets.

➪If you want to go directly to X=24, set your table

start (TblStart) to 24 on the TABLE SETUP screen (-f).

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