Performance-based assessment involves students demonstrating their knowledge and skills through tasks and projects that are meaningful. It provides teachers insight into how students understand and apply their learning. There are various types of performance-based assessment, including individual/group projects, portfolios, performances, and journals. Projects require creativity, critical thinking and collaboration. Portfolios document learning over time through curated work samples. Performances allow students to demonstrate skills through acts like routines. Journals record reflections. Advantages include promoting collaboration, student-centered learning, and knowledge retention. Disadvantages can include potential cheating and high time/cost requirements.