The opening scene was a pirate story using Geometer’s Sketchpad. Frank Sobierajski, the speaker for this session, showed us how you can travel around a pirate’s map and eventually get to the starting point where you began. The boomerang or perimeter theme was prominent at the beginning and end of this standing room only presentation.

The heart of Sobierajski’s session included using Microsoft Excel in a number of ways that would aid high school and middle school students. Some of the information using physics was above my 6th graders heads, but there were several more resources that were provided that made...

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