Kids can build with them, count with them, and eventually add and subtract with them! Oh, did we mention kids can write on them, too? These solid pine numbers blocks - some encased in chalkboard paint! - offer remarkable, educational play value. And as math skills grow, kids find new ways to use "em! Includes 36 wood blocks and 2 pieces of chalks. By PBS Kids™. For ages 3 and up. This block set teaches kids about numbers in so many ways: It introduces numerical symbols and numbers in word form, and helps kids relate the two It teaches counting concepts through simple illustrations It helps kids understand basic math concepts such as addition, subtraction, and "equals" It lets kids create and solve their own math problems, by arranging the blocks and writing on the chalkboard blocks In addition, block play encourages creativity, spatial relationships, and collaborative and independent play. Great for coordination, too. Proceeds from PBS Kids toys help fund free, educational PBS Kids programming for all children. Parents consistently rank PBS Kids as the #1 trusted source of children"s programming. PBS is also the #1 source of TV and online content used by pre-K teachers in the classroom. Includes 17 painted blocks, 8 chalkboard blocks, and 11 natural wood tone blocks Smallest block measures 1 1/2" cubed; largest block measures 3 1/4"W x 1 1/2"H x 1 1/2"D