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Abstracts for Session 8
Saturday, 10:00-10:45am

Patrick Mitchell, Conjectures, Testing, and Proving with Geometer's SketchPad, Room 125
Geometer’s SketchPad is a wonderful tool to use when teaching a geometry class. It allows students to view a large number of examples in a short amount of time. We use this feature to get students to form their own conjectures, test them and hopefully find a way to prove them. Students can discover methods of proving things that can often lead to some surprising results. We shall offer one of these surprising results.
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Richard Delaware, Alternate Office Hours: From Blackboard and Chalk to Internet Whiteboard and Digital Pen, Room 302
Beginning Fall 1998, the University of Missouri (UM) system is piloting a $125,000 College Algebra Enhancement project hoping to improve the rate of successful completion of College Algebra by students on the 4 UM campuses. "Success" means passing with an A, B, or C. (At UMKC current success rates are 64% for Fall 96, 59% for Winter 97, 65% for Fall 97. One goal is to increase these to 90% or more.) Several structural and pedagogical changes are planned, but in this talk the speaker will address *only* the two most technology-intensive aspects of the Project: The new UM College Algebra Web Site, and, the innovative use of internet interactive audio and whiteboard software. With the latter such free software, mathematics discussions can be held live and on-line, literally writing equations by hand, sketching figures, etc. with a digital pen or even with an ordinary mouse. These equations and sketches appear immediately on the monitor, mimicking electronically the ideal one-on-one personal interaction of student and instructor on a blackboard in an office. Both parties can write on the same screen, though they may physically be miles apart. Their joint work can be printed at either end, and previously-done work can even be scanned onto the screen for comments. In this talk, this technology will be demonstrated and the current state of the Project will be reported.
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Martha Clutter, Using the TI-85 and TI-92 to Teach Precalculus and Calculus, Room 306
The graphing calculator can be an extremely powerful tool in the mathematics classroom, both to expedite problem solving capabilities and to develop and encourage higher level thinking skills. Using a TI-85 and a TI-92, the presenter will demonstrate a variety of activities for incorporating the calculator in the precalculus and calculus classroom.
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