Using the TI-84 Plus Graphing Calculator in Middle School ...

Using the TI-84 Plus Graphing Calculator in Middle School Mathematics Aldine ISD March 27, 2010

Shelley Bolen-Abbott Region 4 Education Service Center

sbolenabbott@ 713.744.6521



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To darken/lighten screen Press y} to darken. Press y to lighten.

TI-83/84 Quick Start Guide

Commonly used buttons ? is used for = ? is the negative sign > is used for exponents. 23 is typed as ?>? yz allows you to exit from the current application/window. z allows settings to be adjusted.

To enter functions in calculator Press o.

r along with | and ~ allows you to move along a graph. To set viewing window

Press p

Press ,, for the variable.

Set the appropriate window. Ymax

Xmin

Xmax

Checklist when graphing

1. Enter data in ... or function in o. 2. Set appropriate viewing window. 3. Turn off unnecessary Stat Plots or Functions.

4. Press s.

Common errors

Ymin

Press 1 to Quit or 2 to see the error.

To enter data in lists ...

To perform statistical operations on lists ... ~

?

? Then choose the list name from y... or choose y and ???? or ?.

To clear lists, arrow up to the list name, press ` then ?.

(A common error is a Dim Mismatch. If this occurs, make sure the same number of data values are in each list.

To graph data in lists Press yo

Press ?

mean sum of x-values sum of x2-values sample stand. dev. pop. stand. dev.

number of data points.

The arrow indicates there is more on the next screen. Press several times to see more data.

Press ?.

minimum 1st quartile

median 3rd quartile

maximum

Turn the plot ON, then use the arrows to choose the appropriate graph and source of data (choose

the list names from y...).

Set the viewing window by pressing q9 ?

Resources:

Graphing Calculator Tutorial (math) Graphing Calculator Lessons (education.) Graphing Calculator Emulator ()

Name _______________________

Date __________________ Period ________

Graphing Calculator Scavenger Hunt

By Lois Coles

1. Press 2nd + ENTER What is the ID# of your calculator? ______________

2. For help, what website can you visit? _______________

3. What happens to the screen when you push 2nd over and over? 2nd over and over? ________________________________________________

4. is called the "caret" button, and is used to raise a number to a power. Find 65 = ______. To square a number use x2 What is 562? _______ To cube a number, press MATH and select option 3. What is 363? ___________

5. Press 2nd Y= to access the STAT PLOTS menu, how many stat plots are there? _____ Which option turns the stat plots off? ________________

6. Press STAT . Which option will sort data in ascending order? What do you think will happen if option 3 is selected? __________________________________

7. What letter of the alphabet is located above ? _______________

8. To get the calculator to solve the following problem 2{3 + 10/2 + 62 ? (4 + 2)}, what do you do to get the { and } ? _________________The answer to the problem is __________.

9. To solve a problem involving the area and/or circumference of a circle, you will need to use . Where is this calculator key? _______________________

10. Use your calculator to answer the following: 2 x 41.587 ________ 2578/4 _________ 369 + 578 _________

Now press 2nd ENTER two times. What pops up on your screen? ___________ Arrow over and change the 4 to a 2. What answer do you get? ________ How will this feature be helpful? _____________________________________

11. What happens when the 10x and 6 keys are pressed? ___________

12. The STO

button

stores

numbers

to

variables.

To

evaluate

the

expression

2a 4

3b c

,

press

9 STO ALPHA MATH ENTER to store the number 9 to A. Repeat this same process if B = 2

and C = 1, then evaluate the expression by typing in the expression

2a 3b 4 c

and pressing

ENTER. Is it faster just to substitute the values into the expression and solve the old-

fashioned way with paper and pencil? _______

When might this feature come in handy?________________________________________



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