Engaging, Standards-Based Activities for PreK-1 Common Core ELA Skills Use “write-on/wipe-off,” dry-erase activities to build core, foundational skills. Flexibly designed for use in whole class, small group and individual scenarios! Each flip chart set includes 10 double-sided, 12" x 18" laminated charts and a teachers guide featuring step-by-step teaching instructions along with copy-masters and exercises. 13 Charts.