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John Hanna's
TI Graphing Calculator Page
The Texas Instruments Graphing Calculators have had a tremendous
impact on secondary mathematics education. Not only do they realize the
power of visualization, but they change the content of mathematics curriculum
and allow for real reform to take place. The calculators are affordable,
portable, and powerful. And their programmability makes them as versatile
as a computer. Here's some stuff for you to ponder.
TI83 and TI83 Plus programs:
programs.zip
contains programs.83g, programs.8xg, and programs.txt. You can ungroup
them in GraphLink (Tools/Ungroup) or send the entire group
file to a calculator without ungrouping. The 'g' files are 'Group' files
and can be downloaded directly from your computer to the calculator using
the GraphLink software and cable. You can also 'ungroup' the file to separate
the programs in order to edit them or send them individually to the calculator.
See your GraphLink program for more information or read the "GraphLink:
The Brief Course" PDF document below.
To 'correct' a TI82 program to work on an TI83, you must fix
the (parentheses) problem: On the TI82, functions and some commands had
no left parentheses (like "Sin"). But, on the TI83, the functions all have
a left parentheses appended: it is now "Sin(". Send the TI82 program to
a TI83, then scour the program and look for these functions and either:
remove the 'extra' left parenthesis if the program already had one, or add
a right parenthesis if there were no parentheses in the original program.
The trick lies in knowing where to place the right parenthesis! This is an
excellent mathematical activity!!!
TI89 Files:
ap89files.zip
contains
 ap2000.89g, the scripts for the 2000
AP Calculus Free Response Questions (AB 1, 2, 4, 5, 6 and BC 3, 4, 6)
 apcalc.89g is the T3 APCALC Summer
Institute (2000) program collection
 tanimate.89p is the TI89 version of the TANIMATE program
originally written for the TI83. The program animates tangent lines along
y1(x) and collects the slopes of the tangent lines in lists (L1 and L2)
for data analysis. This program is a good leadin from your discussion about
the slope of a curve at a point to the slope of the curve at all points.
(this program is included in apcalc.89g)
 99ab1234.89g contains scripts for the 1999 AP Calculus
AB Questions 1, 2, 3, and 4.
 APmisc.89g contains miscellaneous programs and scripts
related to AP Calculus, including the famous Reimann Sums Programs (RS*).
There is documentation in the calculator textfile apmisc inside
the group file.
Graphing Calculator Documents
Memory Management on the
TI83 Plus
(new 01/03/02) is a 5page document describing the memory
configuration (RAM and ARCHIVE) of the TI83 Plus and how to ARCHIVE and
GROUP your stuff in the calculator.
TI83Symbols.zip
(10/14/01 contains
TI83Symbols.dot) The
"TI83 Symbols Template" for Word 2000, including a custom toolbar for the
TI83 keyfont symbols and a button linking to Grab83. Clicking the 'Grab83'
button will paste a screenshot into the document using "Grab83". Put this
file in your Templates folder. In Word, check Tools/Options and look at the
File Locations tab to see where your template files are located. Mine are
in c:\windows\Application Data\Microsoft\Templates. If your computer has
User Profiles enabled, then your Templates are in c:\windows\profiles\<username>\Application
Data\Microsoft\Templates. Naturally, you need to have the TI83 keyfont installed
in order for these buttons to do their job! If you don't like the picture
of the TI83 in the left margin (it's really in the header!) , just doubleclick
it and press the 'delete' key.
Make your own toolbar
(new 03/04/01): a onepage explanation of creating
Word2000 macros and a custom toolbar to make 'buttons
' representing the TI calculator keyfont symbols. Makes short work of
putting the calculator key symbols into your handouts. It's how my symbols
templates got made.
TI89Symbols.zip
(new 03/04/01) is ZIPfile containing a Word2000
document template (TI89Symbols.dot) that contains a custom toolbar
with some of the TI89 keyfont characters as buttons. To use the .dot file,
copy it to your c:\windows\Application Data\Microsoft\Templates
folder. Then, either click your START button and choose "New Office Document",
or, in Word, choose File/New... and you'll find TI89Symbols.dot
as one of the 'General' document choices. Doubleclick it and you should
get a new document with a TI89 Symbols toolbar. To use the toolbar, just
click one of the buttons and that symbol from the TI89 Symbols font should
appear at the current cursor position in the current font size. Cool.
Check back regularly for updates to this file or add your own toolbar buttons
using the 'Make Your Own Toolbar' instructions above.
Sierpinski x 3
, a 2 page document describing three different ways of
generating the
Sierpinski Gasket on the TI82/3, including programs,
explanations, and pictures.
Julia and the TI92
, a 1 page document about programming the 'chaos game'
(with complex numbers) for the
Julia Set.
Feigenbaum and TI
, a 1 page document containing the
Feigenbaum diagram
(a 'bifurcation' fractal consisting of parabolas) from the TI92 and
the
short TI92 program that constructs this
amazing fractal.
Chaos: the rest of the story
, a 2 page document (published in the Sept 2001
Mathematics Teacher
"
Technology Tips" section) that adds two items to the good article
by Robert Iovinelli in the February 2000 issue of the Mathematics Teacher
magazine published by the
National Council
of Teachers of Mathematics
. The 'big idea' is the
Feigenbaum fractal described above, but
the article didn't mention the fractal.
GraphLink: The Brief Course
, a 3 page handout describing the use of
GraphLink
for the TI83 for T
^{3} Instructors and 1999 Summer Institute
participants. Get
TI Connect instead!
Grab It Quick! ,  under revision...
coming soon! This handout will describe using my Grab* programs rather than
GraphLink or
TI Connect software to get calculator
screenshots into your computer application. It also describes creating and
using Word macros, and other useful graphics tricks to transfer images between
your calculator and your computer. See my
IVIEW
page or
Talk TI Software
page for downloading the
Grab programs and
IVIEW programs.

T^{3} 
Teachers Teaching with Technology
is a staff development program founded by Dr.
Frank Demana and Dr. Bert Waits of The Ohio State University. We offer
summer institutes, conferences, and workshops in the use of
Texas Instruments' calculators
and computer software in all levels of mathematics and science education. 
Return to John Hanna's Homepage
Check out IVIEW, the TIcalc PICture
editor!
©2000 John Hanna
T^{3 }° Teachers Teaching with Technology
and
Teaneck High School * 100 Elizabeth Ave. * Teaneck,
NJ
(201) 8335567
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