Texas instruments TI-83 PLUS What Is My Angle?

TI-83 Plus

ti

What Is My Angle?

Getting Started

What I s “ What Is My Angle?”
What You Need
Where to Find I ns tallation Instructions

How To…

Start and Quit the Application
Use the Application
Delete the Application

More Infor m a t ion

Error Recovery

2/7/02 © 2002 Texas Instruments

Important Information

Texas Instruments makes no warranty, either expressed 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 consequential 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
any applicable 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, Macintosh, Mac, and Mac OS are trademarks
of their respective owners.

TI-83 Plus What Is My Angle? Application Page 2

What Is the “What Is My Angle?” Application?

What Is My Angle? is a Handheld Software Application (App) for
the TI-83 Plus that lets students practice visually recognizing and
estimating geometric angles in many different scenes and
contexts. What Is My Angle? makes geometry more relevant to
students by illustrating angles found in the world around them.
The App presents this activity in a fun, engaging game format.

The What Is My Angle? application is a concept application that
TI wants to share with our customers, educators, and students
before the product definition and testing are complete. It is an
alpha software version, and as such, it may contain
imperfections, or the coding may be incomplete.

TI invites your feedback concerning the functionality and
educational value of the What Is My Angle? application. Please
send your comments and questions to [e-mail]

.

TI-83 Plus What Is My Angle? Application Page 3

What You Need

Note

In this guidebook, any information that pertains to the TI-83 Plus also
pertains to the TI-83 Plus Silver Edition, unless otherwise noted.

Hardware and software

Notes

TI-83 Plus or TI-83 Plus Silver Edition
with version 1.14 or higher of the
operating system software

You can download a free copy of the
latest operating system software from

education.ti.com/softwareupdates.

Follow the link to Operating Systems.
Computer with Microsoft® Windows®

95/98/2000, Windows NT®, or Apple®
Mac® OS 7.1 or higher installed

TI-GRAPH LINK™ computer-to­calculator cable

If you do not have this cable, call your
distributor, or order the cable from
TI’s online store.

TI™ Connect software, which works with
all supported models of Flash-based TI
graphing calculators.
—or—
TI-GRAPH LINK software that is
compatible with the TI-83 Plus

You can download free copies of
TI Connect and TI-GRAPH LINK
software from

education.ti.com/softwareupdates.

Follow the link to Connectivity
Software.

TI-83 Plus What Is My Angle? Application Page 4

Where to Find Installation Instructions

Note

The instructions in this guidebook are only for this App. If you need help
using the TI-83 Plus, refer to its comprehensive guidebook at

education.ti.com/guides.

Detailed instructions on installing this and other applications are
available at education.ti.com/guides
installation instructions.

. Follow the link to Flash

TI-83 Plus What Is My Angle? Application Page 5

Starting and Quitting the Application

Starting the Application

1. Press

n

to display the list of applications on your

calculator.

2. Select

WhatAngl

. The application’s information screen is

displayed.

3. Press any key to continue. The programmer’s screen is
displayed.

4. Press any key to continue. The application’s main menu is
displayed.

Quitting the Application

1. From an activity screen, press

2. Press

\ 

3. From the main menu, press

by pressing the

EXIT

again to return to the main menu.

\ 

V

key.

\ 

to stop play.

once more, or select

TI-83 Plus What Is My Angle? Application Page 6

Getting Help

R S T U V

From the main menu, select

by pressing the R key.

HELP

The help screens provide an overview of the types of angles you
can choose, how to input your guesses, and how the game is
scored.

To go to the previous page, select

•

key.

R

To go to the next page, select

•

key.

HELP

.

, select

by pressing the

EXIT

•

V

To quit

\ 

NEXT

by pressing the

PREV

by pressing the

T

key, or press

TI-83 Plus What Is My Angle? Application Page 7

Using the Application

Angle Type

Range of Angles Presented

Acute

Greater than 0°, less than 90°
Obtuse

Greater than 90°, less than 180°
Reflex

Greater than 180°, less than 360°
Any Angle

Greater than or equal to 0°, less than or equal to 360°,
including the right angle (90°) and the straight angle
(180°).

The Main Menu

The main menu presents a choice of four different angle types.
Choose the type of angle you want the game to include in the
scenes it creates and presents.

TI-83 Plus What Is My Angle? Application Page 8

ACUTE

REFLEX

OBTUSE

The game generates only angles that are a multiple of 5. The
angles are depicted in many different scenes from everyday life.

To make a choice from the menu, press the corresponding
number key, or press
then press

¯

.

or hto highlight your selection and

`

TI-83 Plus What Is My Angle? Application Page 9

Guessing the Angle

After selecting an angle type from the main menu, the first scene
begins.

Two rays with a common endpoint (vertex) are drawn. Then an arc
is traced from one ray to the other. This is the angle you must
measure. The question

WHAT IS MY ANGLE?

is displayed, followed

by a cursor.

1. Input your answer using the number keys. If you want to
make a change to the numbers you input, press
backspace. When you are done, press

¯

.

^

to

2. If your guess is correct, the word

CORRECT!

appears.

TI-83 Plus What Is My Angle? Application Page 10

Press any key to proceed to the next problem.

Tip

To check your guesses or to measure angles more precisely, try
placing a protractor on top of the display.

R S T U V

Press a graphing key to
select one of the answers.
For example, press

V

to select 310.

If your guess is incorrect, the words

GUESS AGAIN!

appear
briefly. Then a multiple-choice menu is displayed at the
bottom of the screen.

3. Select an answer from this menu by pressing the
corresponding graphing key under each choice.

If you choose correctly, the word

Otherwise, the words

SORRY, THE ANSWER WAS...

CORRECT!

appears.

appears,
and the correct answer is highlighted in the multiple-choice
menu.

4. Press any key to proceed to the next problem.

TI-83 Plus What Is My Angle? Application Page 11

Scoring

After ten problems, a score is displayed along with a
congratulatory message based on the score.

If you press

\ 

to leave the activity before you have
completed ten problems, the score you have achieved up to that
point is displayed.

The score is tallied in the following way:

Guessing correctly on the first try: 10 points.

•

Guessing correctly on the second try: 5 points.

•

Incorrect answer: 0 points.

•

After the score is displayed, press any key to return to the main
menu.

TI-83 Plus What Is My Angle? Application Page 12

Deleting the Application from Your Calculator

1. Press

\ /

2. Select

3. Select

Mem Mgmt/Del

Apps

to display the

.

4. Move the cursor to

5. Press

6. Select

. A confirmation message is displayed.

^

to delete the application.

Yes

.

WhatAngl

MEMORY

.

menu.

TI-83 Plus What Is My Angle? Application Page 13

Installation Error Messages

Low Battery

Do not attempt to download a Flash application if the low-battery
message appears on the home screen. Low battery indication is
shown on the initial screen. If you receive this error during an
installation, change the batteries before trying again.

Invalid Signature or Certificate

Either this calculator does not have a certificate to run the
application, or electrical interference caused a link to fail. Try to
install the application again.

Error in Xmit

This problem is usually associated with the unit-to-unit cable and
its connection between the calculators. Make sure the cable is
firmly inserted in the link port of each calculator.

TI-83 Plus What Is My Angle? Application Page 14

Link Transmission Error

This error indicates that the TI™ Connect or TI-GRAPH LINK™
software is unable to communicate with the calculator. The
problem is usually associated with the TI-GRAPH LINK cable
and its connection to the calculator or to the computer.

Make sure the cable is firmly inserted in the calculator’s link

•

port and the computer’s serial or USB port.

Verify that the correct cable type is selected in the software

•

link settings.

Verify that the correct communications port (Com Port) is

•

selected in the software link settings. (This step does not
apply if you are using the USB port and TI Connect
software).

TI-83 Plus What Is My Angle? Application Page 15

Archive Full

This error occurs when the TI-83 Plus does not have sufficient
memory for the application. In order to make room for another
application, you must delete an application or archived variables
from the TI-83 Plus. Before you delete an application from the
TI-83 Plus, you can save it on your computer using TI™ Connect
or TI-GRAPH LINK™ software for the TI-83 Plus. You can reload
it to the TI-83 Plus later using the TI Connect or TI-GRAPH LINK
software.

Other Errors

See pages B-6 through B-10 in the TI-83 Plus Graphing

Calculator Guidebook for information about the specific error.

TI-83 Plus What Is My Angle? Application Page 16

Checking Version Numbers and Free Space

Verify Operating System Version and ID Number

The What Is My Angle? App is compatible with the TI-83 Plus
operating system 1.14 and higher.

To verify your operating system version number:

1. From the home screen, press

2. Select

ABOUT

.

\ /

.

The operating system version number is displayed below the
product name and has the format x.yy. The ID number appears
on the line below the product number.

TI-83 Plus What Is My Angle? Application Page 17

Verify Flash Application Version

The version number appears on the information screen below
the application name. To display the information screen, do one
of the following:

•

Press

, and then select

n

WhatAngl

.

—or—

•

Select

from the application’s main menu.

INFO

Check Amount of Flash Application Free Space

1. From the home screen, press

2. Select

Mem Mgmt/Del

.

\ /

.

The What Is My Angle? App requires at least 16,384 bytes of

ARC FREE

(Flash), or one space, to load the application.

For more information about memory and memory management,
refer to the TI-83 Plus Graphing Calculator Guidebook

.

TI-83 Plus What Is My Angle? Application Page 18

Concept Application Evaluation License Agreement

(Including Preview, Prototype, and Demo Apps)

BY DOWNLOADING THE SOFTWARE AND/OR DOCUMENTATION YOU AGREE TO ABIDE BY
THE FOLLOWING PROVISIONS.

1. LICENSE: Texas Instruments Incorporated (“TI”) grants you a license to use and copy the

software program(s) (“License Materials”) contained on this diskette/CD/web site. Y ou, and any
subsequent user, may only use the Licensed Materials on Texas Instruments c alculator
products.

2. RESTRICTIONS: You may not reverse-assemble or reverse-compile the Lic ensed Materials.

You may not sell, rent , or lease copies that you make.

3. COPYRIGHT: The Licensed Materials are copyrighted by TI or the third party licensor. Licensee

agrees that he/she will not delete the copyright notice, trademarks or protective notices from the
Licensed Materials or copies made during installation.

4. SUPPORT: The Licensed Material s are provided by TI with the understanding that only limited

support for this concept appl i cation may be available from TI.

5. TESTING: Licensee ac knowledges that he/she understands that TI has not in all cases

subjected concept appli cations to rigorous testing and that the conc ept application may cause
problems with his/her calculator, including its use in any kind of shared envi ronment. Further, it
is possible for a concept application to cause calculator crashes or lock ups which may be
difficult to recover f rom. You are advised that use of the concept appli cation is AT YOUR OWN
RISK.

6. WARRANTY: T I does not warrant that the Licensed Materials will be free from errors or will

meet your specific requi rements.
THE LICENSED MATERIALS ARE MADE AVAILABLE “AS IS” TO LICENSEE.

7. LIMITATIONS: TI MAKES NO WARRANTY OR CONDITION, EITHER EXPRESS OR

IMPLIED, INCLUDING B UT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE
LICENSED MATERIALS.

TI-83 Plus What Is My Angle? Application Page 19

8. IN NO EVENT SHALL TI, ANY THIRD PARTY LICENSOR, OR TI’S SUPPLIERS BE LIABLE

FOR ANY INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAG E S, LOSS OF PROFITS,
LOSS OF USE OR DATA, OR INTERRUPTION OF BUSINESS, WHETHER THE ALLEGED
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SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION MAY NOT APPLY.

9. RESTRICTED RIGHTS: The Li censed Materials are provided with Restricted Rights. Use,

duplication or disclos ure by t he Uni ted States Government is subject to restrictions as set forth
in subparagraph [c](1)(ii) of the Rights in Technical Data and Computer Software clause at
DFARS 252.227-7013 or in subparagraph [c](1) and (2) of the Commercial Computer Software ­Restricted Rights at 48 CF R 52. 227-19, as applicable.

TI-83 Plus What Is My Angle? Application Page 20

Page Reference

This PDF document contains electronic bookmarks designed for easy on­screen navigation. If you decide to print this document, please use the page
numbers below to find specific topics.

Important Information............................................................................................ 2

What Is the “What Is My Angle?” Application?..................................................... 3

What You Need .................................................................................................... 4

Where to Find Installation Instructions .................................................................5

Starting and Quitting the Application.....................................................................6

Getting Help..........................................................................................................7

Using the Application............................................................................................ 8

Deleting the Application from Your Calculator.................................................... 13

Installation Error Messages ................................................................................14

Checking Version Numbers and Free Space ..................................................... 17

Concept Application Evaluation License Agreement.......................................... 19

TI-83 Plus What Is My Angle? Application Page 21