We have been developing the use of Google Sketchup.
I think this is a good way of introducing the concept 3D drawing.
We have been using Pro/Desktop for a few years. This a great application but has a sever learning curve to get you going. Even with the help of the CADinSchool site.
The pro/desktop application from PTC is a full CAD package. In schools this can be bought for £90 for 300 licence's. As you can see this alone makes it an interesting package but you can only get it at this price if you complete the training.
Do you think this a model for the future? Educational use at a reasonable price but only if you have invested the time in learning how to use the app properly.
Google Sketchup I saw as the way of introducing this professional level CAD work in S1/2 but the senior courses are using it too. Do I stop them? Do I direct them to use a much more complex application? So long as the results are what they design and not simplify their designs to make them easier to draw.
The framework to introduce Sketchup in S1 is to take a woodwork model they have already made and redraw it on the computer.
In S2 after drawing the school we are investigating old villages on Islay and starting to draw the buildings in Sketchup. The next part is to place these old villages on Google Earth. The pupils have responded extemely well. They are starting to realise how large the population of Islay was (15000 compared to 3500 now).