**Texas Instruments Graphing Calculators** and **Computer Software**
have had a tremendous impact on mathematics education. Not only do they realize
the power of visualization, but they change the content of mathematics curriculum
and allow for real discovery learning 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. Enjoy.

A Slope Field Activity (zip
file) based on **2004APCalcAB6** for TI-Interactive.

Slope Field Laboratory (zip file) is a 3-page TI-Interactive document that allows for interactive, graphical slope field investigations. For a preview of the document as a pdf file, see the Slope Field Lab Preview.

CLOCKis a ZIP file containingCLOCK.8XP, a circular 'analog' clock by Juan Gonzales and John Hanna. It displays a circular face with minute and hour hands and a sweeping dot for the seconds. Also display AM/PM and the date. Use the calculator's MODE to set the clock. Demonstrates the use of some clock functions and the importance oftrigonometryin setting up the positions of the hands of the clock.

TIMER84is a ZIP file containing TIMER84.8XP, a countdown timer. When you run the program, enter a number of seconds. Then the countdown begins. At the end, it displays "TIME'S UP!". A demonstration of the chkTimer() function built into the TI-84 and the 'length of a number' algorithm.

STOPWA01contains a TI-84 Plus 'stopwatch' program that acts as a stopwatch using the clock functions. Press Enter to start and press Enter to stop and the elapsed time in seconds is displayed.

**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 TI-89 version of the TANIMATE program originally written for the TI-83. 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 lead-in 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.**

**
Opening the Black Box: LinReg Explained
**- (8 pages) My handout for the April, 2008 NCTM Annual
Conference, Salt Lake City, Utah. This handout explains the mathematics
of Linear Regression using the Least Squares Method in terms that high school
Algebra students can grasp (with knowledge of parabolas). The document was produced
with * TI-Interactive!* and the original TII file is
available if you'd like it and there's also a TI-Nspire CAS version. Just contact
me.

**NCTM
2008 TI Booth Presentation Powerpoint Slides** (9 pages). This file
is called "*Algebra_2_Calculator_Items.pdf*".

**
Building a TI-Navigator Cart
- **by George Hurlburt, Chair / Associate Professor of Mathematics; NYSMATYC
President. George was not impressed with the cost of those metal carts for housing
the TI-Navigator system so he decided to build one himself. See how it's done
for around $200.

**
Advanced Mathematics with the TI-84 **for
the Feb 2007 T^3 Regional conference in Hot Springs, AR.

**
LINE Program document **is my demonstration
program for conference sessions on calculator programming. Contains the programming
code and explanations. (1 page) See also: "The
Power in the Palm of Your Hand".

**
Pick Your Model **for the T^3 Regional
Conference, Staten Island, NY, Nov 3-4, 2006. (2 pages) or the long
version (6 pages).

**
Beyond Algebra **for the AMTNJ North Regional Conference at Kean
University, May 12, 2006 (9 pages)

for** Elizabeth, NJ **presentation on April 10. 2006... **TI-84
Plus Basics** (4 pages)

For the** T^3 Regional Conference**, Wilmington, DE, March 31-April
1, 2006:** Navigating TI-Navigator
**and** Teaching Calculus
with the TI-89**

**
CAS 4 ALL ** (113k, 6 pages) for the
**T^3 international Conference** (Feb, 2006).

**
Introduction to TI-Navigator 2.x **- a 3 page handout giving a *brief*
overview of hardware, software, features and tools.Prepared 12/7/2005.

**
TI Navigator Activity Center - **handout for the TI Navigator Conference
at Middlesex County College August 23, 2005 (3 pages)

**
Choose A Model** - an activity for the TI-Navigator Conference at
Hampton University, VA, May 15, 2004. 4 pages

**
Once Upon A Circle 2006** - from the NCTM Annual Conference, St.
Louis. 10 pages

**
The Power in the Palm of Your Hand - 2006** presented at several
confences. Includes some TI-84 clock samples. Now 19 pages.

**
CAS - What's all the fuss?** (5 pages)

**USACAS 2003 Handout**
- posted 6/16/03 - 6 pages on the TI-89.

** The Pencil Revolution**
(2 pages), by Bill N. Lacy, President of **The Cooper Union**,
private, all-scholarship college in New York. *This satirical essay appeared
in the “My Turn” section of Time Magazine sometime during the early
1990’s when the computer craze was hitting the nation’s institutes
of learning. ---Judy Wheeler. *

**The TI-89 for TI-83'ers** (6 pages).
posted 02/05/03 for T3 Regional, Wilmington, DE. An overview of the TI-89 for
teachers familiar with the TI-83 or TI-83Plus.

**Discovering
Geometry with Cabri** (on the TI-92/Voyage 200) (4 pages). posted
10/13/02 for T3 Regional, Middlesex County College, NJ.

** What's 'APPening on the TI-83/4
Plus?** (posted 4/13/2002)- handout for NCTM Las Vegas.

**Yarra River Bike Trails**
(posted 7/112/2006) an investigation of making two quadratic functions fit a
smooth curve. By Peter Fox from Australia.

**Memory Management on the TI-83/4
Plus**** **(new 01/03/02) is a 5-page document describing the memory
configuration (RAM and ARCHIVE) of the TI-83 Plus and how to ARCHIVE and GROUP
your stuff in the calculator.

** TI83Symbols.zip**** **(10/14/01-
contains ** TI83Symbols.dot**) The "TI-83P Symbols Template" for Word
2000, including a custom toolbar for the TI-83 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. Naturally, you need to have the

**TI89Symbols.zip**** **(new
03/04/01) is ZIPfile containing a ** Word2000 document template**
(TI89Symbols.dot) that contains a custom toolbar with some of the TI-89 keyfont
characters as buttons. To use the .dot file, copy it to your

**Make
your own toolbar**** ** (new 03/04/01): a one-page 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.

**The TI-89, CBL2, Motion, and
DataMate()**** **(4 pages) contains step-by-step instructions for collecting
'bouncing ball' data using the CBL2's built-in DataMate software. Written 03/01.

**The
TI-89, CBL2, Microphone, and physics()**** **(4 pages) contains step-by-step
instructions for collecting 'sound' data using the CBL2 and Vernier's physics()
program. Written 03/01.

**Sierpinski x 3**** **, a 2 page document
describing three different ways of generating the **Sierpinski Gasket** on
the TI-82/3, including programs, explanations, and pictures.

**Julia and the TI-92**** **, 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 TI-92 and the ** short** TI-92 program that
constructs this

**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.

**Grab It Quick! **This handout describes
using my Grab* programs rather than **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 Texas Instruments' professional 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. |

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