Exploring The Core is a unique lens in education that lets you *see* what is in the Common Core State Standards. This app series presents all CCSS standards in Mathematics (K-5) and English-Language Arts (K-8). With this app series and related tools, teachers and parents can read the Common Core State Standard for each grade-level skill, see what is involved for each standard, and "swipe" across grade levels to see how each skill develops in and between grade-levels. Eliminate the...