LEARNING RESOURCES PLAYGROUND ENGINEERING & DESIGN BLDG SETEncourage 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. Includes: 104 pieces including 10 double sided Challenge Cards Activity Guide with reproducibles