Project based learning instructional strategies have been used in the K-12 and college setting to activate learning and engagement. Problem Based Learning allows students to learn by taking on real world problems. Research and literature shows that Project Based Learning can increase collaboration, problem-solving skills, communication, self-direction, creativity, time-management, and work-ethic (Wurdinger & Qureshi, 2015). Moreover, literature reveals that 21st century teaching strategies such as flipped learning can enhance Project Based Learning Strategies (Sams & Bergman, 2013). Recent research and professional discussion reveal that more guidelines and accountability lead to better outcomes when using Project Based Learning (Cooper et al., 2017; Ferren & Anderson, 2016; & Klyoster et al., 2018). This meta-analysis explores the most recent scholarly research in Project Based Learning and addresses the need for guidance and accountability.