PA has been issued a state-wide grant to distribute SketchUp Pro Licenses. You can obtain these licenses by filling out the PA IU13 SketchUp Pro Application. Shortly after you complete this form you will receive a googledoc with the license codes and additional information. More information can be found on the SketchUp website.
It is a great program, not just technology education classes but it is great for many project based learning activities. Give it a try!
The PA state grant makes this opportunity available through your PAIU Instructional Media Services (PAIMS).
Update: We now have licenses available for SketchUp Pro 2015, 2016, and 2017!