Given Glenn's cryptography background, I can understand why he's focused on these tabular XY matrices, stacked on a Z axis to give a cube. However, I think with many kids, this'll be too abstract an approach initially, and we need a better way to access hexapent geometry.
The Chattanooga Aquarium introduces this geometry via turtle shells, which is a good way to go. Radiolaria are another popular item. However, I think Glenn has another idea that'll fly with many students: a grid on a globe.
Using open source tools, a gnu math teacher might introduce several important skills, along with relevant concepts.
We want to reinforce angle (shape) vs. frequency (scale), as well is viewpoint (inside looking out vs. outside looking in). Ray tracers are good for this, as they don't let you forget about the viewpoint (the camera).
As the cubists tried to remind us (Picasso et al), an object seen from all sides at once is a myth, as trying to paint that way makes obvious.
Anyway, I've posted blog entries showing hexapent globes in two frequencies, which you're free to reuse in your own web based presentations: