Familiarize your students with the numbers from -20 to 100 with this handy Number Line bulletin board set. This display differentiates 10s and odd and even numbers by color. Includes number words for each numeral, positive and negative number banners, and four ordering signs. Supports the Common Core State Standards. Includes an activity guide. Scholastic bulletin boards are coated with a laminate so users can write with a dry-erase marker, wipe off and reuse!