Hi nowhere,
I am a trained teacher and I remember studying Maslow when I was in school. We looked at Maslow's Hierarchy of Needs in relation to how students learn; For example, we discussed things such as, Can they concentrate/learn/comprehend if their basic needs aren't met? (ETC)
Here is a link to the concept:
http://en.wikipedia.org/wiki/Maslow's_hierarchy_of_needs
As far as his other ideas, I think they are all wholesome and good and attempt to describe what is UNDERNEATH our life experiences. I think his work is foundational along with others such as Piaget, Vygotsky, and Erickson in providing the underpinnings for understanding how children can learn and grow into healthy adults.
I think each of our therapists should have that list hanging in their office!
As for who parents can look to now, look at Penelope Leach, a British child development expert. She is all about healthy beginnings, and full of practical advice.