Texas Instruments -84 Plus Quick start guide

1/19/2005 © 2003, 2004 CabriLog
Distributed by Texas Instruments
TI-84 Plus
Cabri®Jr. App
Getting Started
What is Cabri Jr.? What’s New in Version 2.0?
Start and Quit the App Getting Started E ample
Navigating
How To…
Draw Objects Perform Calculations
Transform Objects Create Labels
Animate Objects Hide/Show Objects
Open and Save Files E plore Figures
More Information
Error Recovery Customer Support

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Important Information
Texas Instruments makes no warranty, either express or implied,
including but not limited to any implied warranties of
merchantability and fitness for a particular purpose, regarding any
programs or book materials and makes such materials available
solely on an “as-is” basis.
In no event shall Texas Instruments be liable to anyone for special,
collateral, incidental, or conse uential damages in connection with
or arising out of the purchase or use of these materials, and the
sole and exclusive liability of Texas Instruments, regardless of the
form of action, shall not exceed the purchase price of this item or
material. Moreover, Texas Instruments shall not be liable for any
claim of any kind whatsoever against the use of these materials by
any other party.
Graphing product applications (Apps) are licensed. See the terms
of the license agreement for this product.
Microsoft, Windows, Windows NT, Apple, and Macintosh are trademarks of their
respective owners.
Cabri and Cabri Geometry are trademarks of CabriLog.

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What Is the Cabri®Jr. Application?
Using the Cabri® Jr. App, you can:
•Draw points, segments, lines, circles, triangles and
uadrilaterals.
•Construct perpendicular and parallel lines; perpendicular and
angle bisectors; and geometric loci.
•Transform objects through translation, reflection, rotation, and
dilation.
•Compute lengths, areas, perimeters, and angle values of
relevant objects.
•Display coordinates and e uations of lines and circles.
•Import/export constructions to the TI-89, TI-92 Plus, or
Voyage™ 200 versions of Cabri Geometryé, as well to the
Cabri Geometry II Plus computer software.

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What’s New in Version 2.0?
Using the new or enhanced features in the Cabri Jr.® 2.0 App, you
can:
•Step through (forward or backward) how a figure was made
using the new Explore tool.
•Perform operations on up to three numeric values at a time
(Calculate tool).
•Save files directly to archive memory.
In addition, the Translation and Reflection tools have been
modified so that the order in which objects are selected is more
intuitive.

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What You Nee
Note In this guidebook, any information that pertains to the TI-84 Plus also
pertains to the TI-84 Plus Silver Edition, TI-83 Plus, and the TI-83 Plus
Silver Edition unless other ise noted.
Hardware and software Notes
One of the follo ing:
•TI-84 Plus or TI-84 Plus Silver
Edition ith version 2.30 or later of
the operating system
•TI-83 Plus or TI-83 Plus Silver
Edition ith version 1.18 or later of
the operating system
You can do nload a free copy of the
latest operating system soft are
from education.ti.com/latest.
Computer ith Microsoft® Windo s®
98/2000/XP, Windo s NT®, or Apple®
Macintosh® OS 8.1 or higher installed
TI Connectivity™ computer-to-device
cable
TI Connectivity cables are available
for purchase from retail stores, online
retailers, and instructional dealers.
See a list at education.ti.com/buy.
You may also purchase TI
Connectivity cables from the TI
online store at
education.ti.com/shop.
TI Connect™ soft are, hich orks ith
most supported models of Flash-based
TI graphing devices
You can do nload free copies of
TI Connect soft are from
education.ti.com/do nloadticonnect.

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Where to Fin Installation Instructions
Detailed instructions on installing this and other applications are
available at education.ti.com/guides. Follow the link to Flash
installation instructions.
Getting Help
The Cabri® Jr. App has built-in help for using the menus. To
access the help, open the F1 menu (press o), select Help, and
then select the menu that you need help with.
The instructions in this guidebook are only for this application. If
you need help using the TI-84 Plus, refer to its comprehensive
guidebook at education.ti.com/guides.

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Getting Starte
In this exercise, you will construct a circle that circumscribes a
triangle, that is, the circle passes through each of the three
vertices of the triangle.
Starting the Cabri® Jr. App
1. Press Œto display a list of applications on your device, and
then select CabriJr. The information screen is displayed.
Tip From the Apps menu, you can press ƒCto move to the
first application name that begins ith a C.

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2. Press Íto continue. If you have previously used the App,
the last screen that you viewed is displayed; otherwise, the F1
menu is displayed.
Navigating within the App
To use the Cabri Jr. App, you select tools and options from a set of
menus. The menus remain hidden until you open them.
Cabri Jr. retains your
last activity, including
the cursor location,
when you quit the App
or when the TI 84 Plus
turns off.
The first time you run
Cabri Jr., the F1 menu
is displayed with the
Help menu item
highlighted.

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The menus are labeled F1-F5 and correspond to the graphing keys
directly below the screen. You can press the graphing key (o,
p,q,r,s) for the corresponding function key
or you can press ƒplus the function key (F1-F5) to open a
menu.
•Press }and †to move the pointer from one menu item to the
next.
•Highlight a menu item and press Íto select it.
•Press ‘to deactivate a tool or to close the menu and
return to the drawing screen.
•Press |,},~, or †to move the pointer around on the
screen. You can press and hold an arrow key to move the
pointer rather than repeatedly pressing it.
For example, to open
the F1 menu, you can
press oor press
ƒ
^
.

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Drawing a Triangle
1. Open the F2 menu, move the pointer to Triangle, and press
Í. The tool icon at the top left of the screen indicates that
the Triangle tool is active. The pointer shape changes to a pen
to indicate that you can draw a new point by pressing Íat
that position.
2. Move the pointer to a convenient location for the first vertex of
the triangle, and then press Í.
3. Move the pointer and then press Íto fix the second vertex
and continue the same way for the last vertex.
Changing the Shape of the Triangle
1. Press ‘to uit the Triangle tool.
2. Move the pointer close to one of the vertices that you drew.
The pointer changes to a hollow arrow and the object that can
be selected (the vertex) blinks.

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3. Press ƒ. The pointer changes to a hand, indicating that
the point is selected.
4. Press |,},~or †to move the point.
Drawing the Three Perpendicular Bisectors
1. Open the F3 menu and select Perp. Bis.
Tip After you open the F3 menu, you can press 3 to select Perp.
Bis., since it is the third menu item.

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2. Move the pointer to one side of the triangle and press Íto
construct its perpendicular bisector.
Tip When the pointer is close enough to the triangle’s side, it
changes to a solid arro and the side of the triangle blinks,
indicating that you can no press Íto construct the
perpendicular bisector.
3. Move the pointer close to another side of the triangle and
press Íto construct another perpendicular bisector.
4. Finally, move pointer to the last side of the triangle and press
Íto construct the third perpendicular bisector. Now the
perpendicular bisectors share a common point that you will use
as the center of the circumscribed circle.

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Drawing the Circumscribed Circle
1. Open the F2 menu and then select Circle.
2. Move the pointer to where the three lines intersect. Two of
three lines blink, indicating that a point will be drawn at their
intersection.
3. Press Í, to draw the center point of the circle.
4. Move the pointer to one of the vertices of the triangle and then
press Íto select the vertex point and draw the circle.
Tip The vertex point blinks hen the pointer is close enough to it for
you to select it.
Notice that the two
other vertices of the
triangle are located
on the circle.

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You can now press ‘and drag any of the vertices of the
triangle. The size of the circle changes as the shape of the triangle
changes.
Saving our First Construction
1. Open the F1 menu and then select Save.
2. Type a name (up to eight characters), and then press Íto
save the construction.
Tip •The first character in the file name must be a letter.
•Alpha lock is already turned on hen the Type a Name dialog
box is displayed.
•To edit the file name, press ‘
to delete the entire name or
press {to delete one character at a time.
•To cancel, press yor press the arro keys to highlight the
Cancel button, and then press Í.
The property found before
holds true: the two other
vertices of the triangle are
always located on the circle.

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To uit the Cabri Jr. App, either press y5or open the F1
menu and select Quit.
Now that you have completed this example, you can read further to
learn more about other Cabri Jr. App features.
For example you can:
•Draw different types of objects.
•Use more sophisticated construction tools.
•Apply geometric transformation to objects.
•Calculate and display measurements of angles, area, and
slope, as well as distance and length
•Animate points lying on segments or circles.

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Starting an Quitting the Application
Starting the Application
1. Press Œto display the list of applications on your
TI-84 Plus.
2. Select CabriJr. The application’s information screen is
displayed.
3. Press Íto continue. if you have not previously used the
Cabri Jr. App, the F1 menu is displayed. If you have used the
App, the last figure that was edited is displayed.
Tip Acontextual help screen appears after a hile, if you have not
started a change in the figure.
Quitting the Application
Press y5or open the F1 menu and select Quit.

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Navigating
The Cabri® Jr. interface is designed to reproduce the look and feel
of a computer graphical user interface. In the place of a mouse,
you press |,},~, and †to move the pointer around on the
screen. You access various functions through menus. When
additional information is needed, Cabri Jr. displays a dialog box
with OK, No, or Cancel buttons like those you see in many
computer programs. The default button is highlighted; press Í
to select it. To use a different button, press |or ~to highlight it
and then press Í.
Button that is highlighted:
Button that is not highlighted:
Accessing Menus
To use the Cabri Jr. App, you select tools and options from a set of
menus. The menus remain hidden until you open them.

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The menus are labeled F1-F5 and correspond to the graphing keys
directly below the screen. You can press the graphing key (o,
p,q,r,s) for the corresponding function key
or you can press ƒplus the function key (F1-F5) to open a
menu.
•Press }and †to move the pointer from one menu item to the
next.
•Press ~to display a submenu or to display the next menu to
the right.
•Press |to close a submenu or to display the next menu to the
left.
•When a submenu is displayed, press ~to jump to the next
menu, for example, from an F1 submenu to the F2 menu.
Tip You can select a menu item by pressing the number that
corresponds to the item.
•Press ‘to close the menus and return to the drawing
screen.
For example, you
can press oor
press ƒ ^
to display the F1
menu.

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Moving the Pointer
Press |,},~,or†to move the pointer around on the screen.
You can press and hold an arrow key to move the pointer rather
than repeatedly pressing it.
Selecting an Object
•When a tool is active, move the pointer close to an object and
then press Í.
•When no tool is active, move the pointer close to an object and
then press t.
Tip •When the pointer is close enough to the object to select it, the
object blinks.
•When the object blinks, you can select it, even if the pointer is
not exactly on the object.

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Creating, Saving, an Opening Files
Creating a New File
Open the F1 menu and then select New to create a new file. If you
have not already saved the current figure, you will be prompted to
do so.
Opening an Existing File
1. Open the F1 menu and then select Open. A list of files is
displayed.
2. Highlight the file that you want to open and then press Í.
Saving a File
1. Open the F1 menu and then select Save or Save As.
Note If you have previously saved the file, selecting Save over rites
the previous file.