1National Research Council.A Framework for K-12 Science Education:Practices,Crosscutting Concepts, and Core Ideas[M]. Washington, D.C.:The National Academies Press,2011.
3Knut Neumann, Tobias Vierin, William J.Boon, & Hans E. Fischer.Towards a Learning Progression of Energy[J].Journal of Research in Science Teachin, 2013,50 ( 2 ) : 162-188.
4National Research Council. A Framework for K-12 Science Educa-tion :Practices ,Crosscutting Concepts ,and Core Ideas[M]. Washing- ton ,D.C. :The National Academies Press,2011.
5NGSS Lead States. Next Generation Science Standards, Volume 1 : The Standards Arranged by Disciplinary Core Ideas and by Top- ics[M]. Washington D.C. :The National Academies Press ,2014.
6NGSS Lead States. Next Generation Science Standards, Volume 2 : Appendixes[M]. Washington, D.C.: The National Academies Press, 2014.
7Joel Michael ,H.I.Modell. Active Learning in Secondary and College Science Classrooms :A Working Model for Helping the Learner to Learn[M]. Lawrence Erlbaum Associates, 2003 :ix-x.
8Common core state standards initiative, home[EB/OL][2015-10-01]. http ://www.corestandards.org.
9National Research council. National Science Educational Standards [M]. Washington,DC :National Academy Press, 1996.
10Michael O. Martin,Ina U.S. Mullis,Pierre FOY. TIMSS 2007 Inter-national Science report :Finding from IEA's Trends in International Mathmatics and Science study at the fourth and eighth Grades[R]. Boston:TIMSS&PIRLS International study center, Lynch School of Education, Boston College,2008 : 13.
