This is a Common Core Aligned (L.4.1.g, L.4.2d, L.4.5.c, L.4.6) vocabulary program! I have included what I call Essential Vocabulary terms and definitions from four core curriculum areas. The first two vocabulary words on each list are science, the next two are math, the following two are social studies and the last two are language arts. My fourth graders not only enjoy these lessons but they actually look forward to them and often beg for more. It is my hope that you will experience the same success in your classroom! I have outlined how I’ve implemented Essential Vocabulary in my classroom, but feel free to tweak it to fit your specific situation.