Instructions for the Marshmallow Challenge: Each team has 20 minutes to build the tallest, free-standing structure using the materials supplied to each group. The marshmallow must be attached to the top of the structure you build. After 20 minutes, I will measure the height of each structure that remains standing with the marshmallow on top. The winner is the team whose free-standing structure is the tallest. After the challenge, you will complete the Marshmallow Challenge Reflection on the attached document.