Common Core standards:

Math DPI Wiki:
Major work of the grade:

English Language Arts:
ELA Wiki

Writing Rubrics for Common Core:

Student Writing Samples:

Text Exemplars and Performance Tasks:

Other Resources:

Common Core Assessment Website (you can add you assessments here too):

Common Core Crosswalks (the old NCSCOS and the Common Core):

Science Essential Standards:

Social Studies Essential Standards: