4 years & up. Poll your students on 3 high-interest topics, or create your own. An engaging tool for introducing graphing and displaying and interpreting data. Includes 155 double-sided, write & wipe cards: 5 title cards and 150 data cards with pictures, words, numbers and blanks. Cards focus on sports, pets and food. Includes 78 display pockets per side and an activity guide. Use with wet- or dry-erase markers. Flame-retardant nylon chart with 4 storage pockets. Measures 36"L x 18"W.