Employ the flexibility of this interactive teaching tool featuring vibrant wildflowers in bright, perky colors to delve into mathematical concepts, from even/odd numbers to positive/negative integers, and various math operations. The number lines can be used for whole class lessons or for individual student reference during math lessons. Set includes 24 pieces - 19 number line pieces, 5 accents, and a teacher's guide. Largest piece measures 23" x 5".