Grades PRE-K and up. Children will love using the Design and Drill Activity Center to create their own designs, or following the set's colorful activity cards to make pictures and patterns-from trains and boats to flowers and fish. Just snap any one of the drill bits into the reversible power drill or the screwdriver handle, grab a handful of big bolts, and turn on the learning fun. Twenty colorful activity cards (10 "make-a-picture?cards and 9 "follow-the-pattern cards?#41; provide young learners with tasks from simple to challenging. Complete set includes one reproducible blank grid for "make-your-own card?fun.