Hey pretty, neat site, nice and easy!
i would suggest you move/or put the phone number at the top as well, perhaps the bottom too - standard footer/header contact details kind of thing.
I also say move - because I always find the whole "toll free blah blah blah" in pretty colours a little cheesy and unprofessional.
Fix the aliasing on the cube, its jaggered - perhaps incorporate the colour scheme more into the cube. Im guessing the cube is meant to represent some form of "building", perhaps emblesh this more? - put the missing brick on the outside or something.
Perhaps it would be better to put a 'mini-newsletter' feed where the contact is and the contact us at the top. I always like to have the contact page on a seperate page.
The white titles for "contact us" and "montessori jobs" doesn't really work with the background, its a little hard to read, more contrast would be nice. Espeically if someone wants to write a longer message, your message box is quite small.
Just curious how come MontessoriJobs and montessori marketing don't share the same blue for the logos?
Visual wise - pretty damn good! If I was to add anything I would say watch your lighting, yo have the light green behind the cube and then the light backing for contact us and montessorijobs. I dont think its balanced very well. My eye is distracted from the top menu & logo.
Also I think if you could add some texture somewhere it would really bring it to the next level. Keep the same style but add some texture e.g. grass, clouds something.
Anyway regardless its pretty good as is! And you really don't need to do much more, just some tweaking.