Kassie Smith
Resources:
Sketch Exchange: Organized by grade level and topics. You might have to click around a little and try out the sketches but there are tons of really neat and useful sketches on here!
101 Project Ideas with a free download of a booklet
Advanced Sketch Gallery with Tool Kits and 3D Explorations
More Links to other sites discussing Sketchpad lessons, activities, ideas
Below are some of my favorite gsp sketched that I came across:
Interpreting Linear piece-wise graphs
Ferris Wheel Trigonometric Transformations
Below is a gsp sketch I made for the various relationships with chords, tangents, and secants in circles: