Somewhere between sixth and ninth grades, an amazing transformation takes place
in the early adolescent brain: the leap from concrete thinking to
abstract thought. Parents, guardians, and educators see glimpses of
"the big idea" coming through in sixth grade, although for many
children, robust abstract thinking isn't truly mastered until the ninth
grade. In the RDS Middle School, considerable teaching is framed around
guiding students to think in these broad, conceptual strokes, and this