Kids explore the legend of Paul Bunyan—then design a wagon to carry his heavy knapsack! Our kit helps kids discover the STEM in a classic folk tale—inspiring them to use hands-on materials to design, build and test a working wagon…then improve their design like real engineers! This kit comes with a STEM-focused story card, student challenge cards, a detailed lesson plan and a reproducible design sheet—plus 52 pieces to build a wagon, a 2-pound, 4 1/2" weighted knapsack, rubber bands and a tape measure.