Submarine Math Prepare to Dive! Two Submarines  Which Sub is faster?  Why?

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Presentation transcript:

Submarine Math Prepare to Dive!

Two Submarines  Which Sub is faster?  Why?

 A rate is a ratio comparing two different units  Examples: Dollars/week Miles/hour Beats/second Rate: Definition and Examples

 Any rate that is compared against a unit of one. Unit Rate $3.75 for 5 ears of corn Rate Unit Rate $.75 for 1 ear of corn

Rate of Change  How do you determine change? Age in Years 34” 49” 63” 68” Height in inches

Look at age 9 and 12 Age in Years 34” 49” 63” 68” Height in inches What is the change in height?

Starting Out 1 st Press “ON” Press “CLEAR”

If your screen still is not clear… The screen has some things on it including the word “EXIT” in the lower left. Yes No Press the “2ND” key followed by the “QUIT” key. Repeat until you see the word “EXIT” in the lower left. Press the “Y=” (just above the “2ND” key) to exit.

Your screen is finally clear!

Let’s get started Press the “APPS” key Highlight ALG1 PRT1 Press “Enter” Press any key

Press the 3 on your calculator 3 times

Press the right arrow key

Highlight Choice 2 then Press Enter

Press “ENTER” 3 Times

Fill in your data collection sheet after pressing “ENTER” 2 more times Ignore the directions at the bottom of the screen.

Click “ENTER” once then use your up and down arrows to select the correct rates of change

Correct or Incorrect? If you are correct great, if you are wrong try to figure out why the correct answers work.

Press “ENTER” twice to Play Again Keep going until you are sure that you know how to calculate rate of change.