1. WAIT TO MAKE CURRICULUM CHANGES: It is definitely too early to do "crosswalks" or make decisions about who will be teaching what in science. Many changes will be made to the NGSS Draft before we see a 2nd Draft in late-Fall 2012. The final NGSS will not be published until early 2013, and the state won't make an adoption decision until mid-2013 at the earliest.
a) If the NGSS are adopted, SDE will develop a 3-year transition plan, including guidance for developing curriculum and adopting/adapting teaching materials. Think in terms of developing new district science curriculum during the 2013-14 school year; then reviewing existing instructional materials/kits to determine where they are aligned with the new curriculum and where they need to be revised or supplemented.
b) Science CMT and CAPT will remain essentially unchanged through Spring 2015 (see attached NRC Framework ppt, Slides 28/29). The earliest we expect to see new Next Generation science assessments is school year 2015-16 (or perhaps the following year).
2. DO INCORPORATE SCIENCE/ENGINEERING "PRACTICES" INTO SCIENCE INSTRUCTION NOW - Closely read NRC Framework Ch. 3 explanations of each of the 8 Practices. Begin to alter instruction so these practices are blended with existing content (from CT science standards). The Framework envisions that students will use Science and Engineering Practices to deepen their understanding of Core Ideas and Crosscutting Concepts. Begin to place more emphasis on:
a) developing and using models to explain scientific principles or test engineered designs;
b) constructing scientific explanations and designing solutions
c) making and supporting scientific arguments (claims) with evidence
d) critiquing the quality of scientific data
e) obtaining, evaluating and communicating information
The changes called for by Common Core and NGSS will take years to implement effectively in all classrooms. Have the courage to be patient, but not complacent. Now is the right time to work on a thoughtful, realistic long-term plan to help teachers and students transition to new ways of learning.
Below are some suggested readings from the NRC Framework (http://www7.nationalacademies.org/bose/Standards_Framework_Homepage.html). Pages cited are from the free download edition and differ from those in the print edition:
Chapter 1: A new vision (all)
Chapter 2: Guiding assumptions (pp. 1-8)
Chapter 3: Scientific and Engineering Practices (pp. 1-6; see pp. 6-32 Goals and Progressions)
Chapter 4: Crosscutting Concepts (pp. 1-2 and pp. 2-13 Progressions)
Chapters 5 - 8: Disciplinary Core Ideas and Component Ideas. Pay CLOSE attention to the Grade Band Endpoints as each sentence within these narratives is a content standard that will appear in the NGSS, and the wording and grade band cannot be changed!
Chapter 9: Integrating the Three Dimensions (pp. 1-2). Explains how Practices, Core Ideas and Crosscutting Concepts will be interwoven to create standards that will be written as learner outcomes.
Chapter 12: Guidance for Standards Developers -13 Recommendations (pp. 297-308)
RESOURCES
NSTA now has a new web page dedicated to NGSS http://www.nsta.org/about/standardsupdate/. Included at the link is a video of Steve Pruitt's presentation at NSTA Indianapolis conference.It's an in-depth explanation of the Framework and the Standards; definitely worth watching.

