NCTM Geometry Standard for Grades 6-8 Use repeated execution of Edit/Find... to find "software". There are many dynamic geometry software suggestions in these standards.

Lesson Plans Using GSP For Grades 6-8

http://www.yrbe.edu.on.ca/~cecw/docs/software/guides/GEOACT.PDF Geometry Activities for Middle School Students with The Geometer's Sketchpad. The text and cd can be purchased at http://www.keypress.com/sketchpad. They are still working on upgrading this text to Sketchpad 4.

http://mathforum.org/sketchpad/sketchpad.html The Geometer's Sketchpad Math Forum Classroom Resources

http://mathforum.org/~annie/gsp.handouts/ Annie's Sketchpad Activities

http://mathforum.org/sketchpad/littleones/ Sketchpad for Little Ones

http://www.occdsb.on.ca/~tec/gsp.pdf A Collection of Useful Information for Teachers Wanting to Learn Geometer's Sketchpad. Includes suggestions for assessment.