Dimension 3

Overview and Resources for Dimension Three: Disciplinary Core Ideas (DCI)
The Dimension Three content is presented by topic:
Physical Sciences
NSTA page on Physical Sciences. Drills down to each individual objectives and gives a grade band expectation matrix for each objective.
Life Sciences
NSTA page on Life Sciences. Drills down to each individual objectives and gives a grade band expectation matrix for each objective.
Earth and Space Sciences
NSTA page on Earth and Space Sciences. Drills down to each individual objectives and gives a grade band expectation matrix for each objective.
Engineering, Technology and Applications of Science
NSTA page on Engineering, Technology and Applications of Science. Drills sown to each individual objectives and gives a greade band expectation matrix for each objective.

Video and Online Resources for Dimension Three:
Disciplinary Core Ideas (DCI)
The National Academy Press Open Book is a good resource to explain what content students are expected to know at the end of each grade. The entire book can be downloaded from this site for free.

Bozeman Science NGSS page. You can find links to videos on each Dimension Three topic's objectives.