Encourage your child to come up with their own designs or they can follow the Challenge Cards, which include how to build different pieces of equipment on a playground (a twisty slide, a swing set, a seesaw, and more). Reproducible worksheets based on the engineering design process are included in the Guide. Slide measures 6"L. Includes 104 pieces including 10 double-sided Challenge cards, and activity guide with reproducibles. Ages 5+/Grade K+.