A Framework For K- 12 Science Education: Practices, Crosscutting Concepts, and Core Ideas was released by The United States in July 2011, the content of which will have a profound impact on American science education. One of the prominent features is its curriculum integrated in the form of Learning Progressions. The main characteristics of the curriculum consist of centring on the core concept of disciphne,cross-domain concepts and scientific and engineering practice with highlighting the core concepts in the curriculum status,focusing on hig...