Energy Theater Diagrams E1 Examples

Here are some examples of the Energy Theater Diagrams that E1 used this summer (2011).  I thought it might be interesting to look at these and compare them to your ideas. 
1. This first one is interesting because it circles the final energy form and uses arrows to show us the progression of an energy chunk.

2. This next one is really different than our version - it uses different moments in time to show the progression of the energy. Does this work for your rules?  How would the arrows work here or could they work?

3. Here is a third example of the energy involved in a light bulb.  They use arrows as well.  It might be interesting to do "our version" of energy theater diagrams for these and compare the situations.