Check out this discussion between a mom and daughter about her experience with Sudbury education. The daughter started at Tallgrass at age 4--here she is reflecting on her experiences at around age 9.
Great quotes:
"I remember going to open house [at another school's kindergarten] and seeing all these owls that looked exactly the same."
"Math can be important for your future, it can be really important. But if you *force* kids to learn it every day, they're going to forget it."