All of the 2nd grade Common Core Standards (ELA & Math) listed on 1 page (front & back) for quick reference!
Print it out on cardstock and laminate it, making a reference sheet to take with you wherever you go! Last year I used a yellow sharpie to highlight the standards (or parts of standards) that I introduced to the class, and as more/most of the class mastered the standards I went over it with green sharpie. This really helped me make sure I taught all of the standards. It also helped me globally with time management by allowing me to visualize how many things I had left to cover.