Heading out to sled
The snow was a little thin, so students decided to move snow from other parts of the field to the sledding hill. They coordinated their efforts, spending most of the day moving snow and placing it in spots that would maximize the sled run, packing it down and testing the run. This effort took much of the day and involved up to 15 students.
Communicating the plan
Gathering more snow
After several hours of working and testing, they made a sled run that worked.