Interesting article, but im a bit pressed for time, so a more in-depth analysis to come soon. just thought id add this:
to the best of my knowledge --
Axiom - something that we know is true, but cannot really prove.
(i.e. the field laws of mathematics)
Law - Something that we know is true
for all instances and can prove. (e.g, Kirchoffs Voltage Loop)
Theory - Something that we know is true for many instances, but we have not, or cannot prove it for all instances (e.g. Theory of Relativity)
Hypothesis - Something that we belive may be true (e.g. my hypothesis that if an alien race really wanted to invade the earth withi minimum casualties, all they had to do is dress up as cute widdle bunny rabbits. By the time we, as a Race, would have finished laughing, they could have taken over it all
)
So, i say sure, present the theory of evolution, but present the other views too,and let the children make up thier minds regarding which theory makes more sense.