The document discusses a 21st century education assignment where students were split into groups and assigned one of six pillars to research and present. The student's group was assigned project based learning. They decided to create an app to present their pillar instead of a PowerPoint. Through creating the app, the group applied critical thinking and project based learning skills. The student reflected that creating the app allowed them to experience 21st century education approaches. They suggested improvements like dedicating class time and teacher support for similar group projects.