Google Sketchup is a 3D modeling tool that is available on desktop computers via the App Depot and on Chromebooks.
Students can access using this link: https://edu.sketchup.com/app/
Teachers can access using this link: https://my.sketchup.com/app
Learn to use Sketchup at these sites:
https://sites.google.com/pisd.edu/click/sketchup (tips created by Plano ISD students!)