From my understanding in 1st grade here the focus is language arts, writing and math. Everything else comes in 2nd grade or above. I looked over the common core curriculum guide for her grade and those subjects were the only ones in the guide.
For science, this may be helpful:
http://www.nextgenscience.org/sites/ngss/files/1%20combined%20DCI%20standards%206.13.13.pdfFor social science, other states have standards starting from K so you might want to take a peek there to get a general scope and sequence.
For Montessori elementary curriculum:
http://www.amazon.com/Teaching-Mont...57&sr=8-3&keywords=montessori+elementaryIt's out of print but your local library may carry a copy.
