This file contains the eight science practices that the Next Generation Science Standards focuses on. I post them in my classroom as learning targets - it seems to really help my students focus on the lesson's objectives.
These are also included in my 6-8th grade "mega-pack" listings - but there you will also get the performance expectations posters, the science practices checklists, and the standards checklists as part of the package.
I hope this helps you as you begin to implement the NGSS. If you have any questions or issues please feel free to contact me.