TY - BOOK ED - National Research Council (U.S.) TI - National Science Education Standards: observe, interact, change, learn SN - 0309053269 AV - Q183.3.A1 NAT 1996 U1 - 507.1/0973 20 PY - 1996/// CY - Washington, DC PB - National Academy Press KW - Science KW - Study and teaching KW - Standards KW - United States N1 - "National Research Council"--Cover; Includes bibliographical references and index ER -