An engaging tool for introducing graphing (bar graphs) and displaying and interpreting data. Chart accommodates different amounts of x and y axis data. Includes 155 double-sided, write & wipe cards: 5 title cards and 150 data cards with pictures, words, numbers and blanks. Features 78 display pockets on each side. Nylon chart measures 18"W x 36 1/2"H. Intended for ages 4 years and up.