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• Author or Editor: Karen Flanagan Hollebrands
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## Technology Tips: February 2003

This month's column sees a return to dynamic geometry. Daniel Scher presents a “proof,” which he claims is rigorous, of why the midpoints of the sides of a quadrilateral, joined in order, produce a parallelogram. Do you agree? Our second tip is a worthwhile introductory activity for any group new to a particular technology. Susan Hvizdos challenges us with a TI-83 Plus Scavenger Hunt.

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## Technology Tips: April 2003

This month's tip centers on an alternative view of functions. Instead of perpendicular axes for domain and range, we explore parallel axes. This idea has been around for a while (see the references in Bridger and Bridger ([2001] and in the “Surfing Note”), but we hope to breathe new life into this fascinating representation of functions with two easy-to-use programs for the TI-83 Plus. We provide an introduction to mapping diagrams (also called function diagrams) and the code for one program to produce them using the TI-83 Plus. Information about the second program will be given in “Technology Tips” in May. Both programs are available electronically, so users do not have to type the programs into their calculators.

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## Technology Tips: January 2004

This month, we provide an example of a rich mathematical task that leads to many different connections. The task was posed to a class of high school seniors who were using a dynamic program for geometry called Cabri Geometry II. This tip includes directions for creating this problem with technology and suggestions for exploring it. The Cabri II software is available for Macintosh and PC computers from www.cabrilog.com/en or education.ti.com. It is also available for several different Texas Instruments calculators (TI-83 Plus, TI-83 Plus Silver, Voyage 200, TI-89, and TI-92 Plus). The program is similar to The Geometer's Sketchpad, and users who are familiar with The Geometer's Sketchpad should be able to easily adapt this task to use with it.

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## Technology Tips: February 2004

This month's “Technology Tips” introduces readers to a powerful teacher-productivity tool. Mathematics teachers have needed inexpensive, easy-to-use software that allows them to create electronic documents that contain multiple representations. One such software package is TI-Interactive! (version 1.1, Texas Instruments, 2002). TI-Interactive is a word-processing tool that combines the features of a graphing calculator with the flexibility of a word-processing program, an equation editor, and a computer algebra system. This software tool gives mathematics teachers the power to create, modify, and share textbook-quality graphics and symbols. This “Technology Tip,” written by Robin L. Rider, is meant to introduce some of the commonly used features of the software. Future “Technology Tips” will explore more advanced features.

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## Tech Time: April 2004

AS MANY OF YOU PREPARE YOUR STUDENTS FOR ENDof-year examinations, you spend time creating review sheets and sample assessments. For this month's “Technology Tip,” Jeff Suzuki introduces readers to a powerful use of word processing and spreadsheet software that can help teachers design individualized worksheets and assessments. Jeff provides directions for using a function called Mail Merge in Microsoft Office. Although most productivity software groups (for example, ClarisWorks, Microsoft Works, and Office XP) have this type of merging function, the directions given in this “Technology Tip” are specific to Microsoft Office 2000. The process may be used with any software that has mail-merge capabilities and that allows a spreadsheet data file as input.

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## Technology Tips: May 2004

IN THIS MONTH'S “TECHNOLOGY TIPS,” MARY ANN Connors introduces readers to the use of scripts on the TI-89, TI-92, TI-92 Plus, or Voyage 200 calculators. She demonstrates how teachers can create scripts to be used either during a whole-class calculator demonstration or by students while they engage in a mathematical exploration.