The project method is a teaching approach that involves assigning students a project to complete. It is based on the principles of learning by doing and learning through association, cooperation, and activity. Some key aspects of the project method are that projects should be purposeful, useful, allow student freedom, involve constructive activity, be realistic and related to students' lives, and focus on social development and usefulness to society. Students plan projects in advance to determine how, when, what, where, and why to solve problems.