RT @maren_johnson: What PD strategies are needed for implementation of the NGSS? Brian Reiser outlines some key ideas. http://t.co/bNYEuzWXk12center.org/rsc/pdf/reiser…
RT @maren_johnson: What PD strategies are needed for implementation of the NGSS? Brian Reiser outlines some key ideas. http://t.co/bNYEuzWXk12center.org/rsc/pdf/reiser…