Have students work with a group to build the tallest structure in a limited time frame. A time limit of 8 minutes may be suitable depending on your group. Give each group the same materials: for example 12 straws, 2 pieces of paper, a meter of masking tape, string, scissors...etc. Another option is to use spaghetti sticks and marshmallows. Prior to starting the task, have students fill out the first side of the reflection sheet. After completing the task, have them fill out the second side.