Click the green flag. Works best in full screen mode. Stay as still as you can to grow the tree using a computer's camera to detect any movement.
This project has been created by the Raspberry Pi Foundation for young learners to develop their programming skills. To make this project yourself go to: https://projects.raspberrypi.org/en/projects/grow-a-tree. To see other projects in the Look after yourself pathway go to: https://projects.raspberrypi.org/en/pathways/look-after-yourself