Students reflected after their first 18 minute attempt at the Marshmallow Challenge. They talked with their group about what did not work, brainstormed what they could try the next time, what materials they used, which they did not and how could using all of the materials help them to think outside of the box. Below are the pictures from the 2nd attempt at the 18 minute marshmallow challenge, almost all of the groups had a free standing structure. This time the tallest structure was 41 cm tall, quite an improvement.