The Second Dimension–Crosscutting Concepts
R. A. Duschl
Science Teacher (February 2012)
URL: http://eric.ed.gov/?id=EJ977348
The recently published National Research Council (NRC) report
keywords: Elementary Secondary Education; Science Education; Educational Practices; Scientific Concepts; Flexible Progression; Articulation (Education); Lesson Plans; Instructional Design; Teaching Methods; Developmentally Appropriate Practices; Science Course Improvement Projects