The document discusses project-based learning (PBL) as an instructional approach where students learn by actively engaging in real-world and personally meaningful projects. It provides three key benefits of PBL according to research: 1) It increases long-term retention of content knowledge, 2) It helps students perform as well or better on assessments compared to traditional instruction, and 3) It improves students' problem-solving, collaboration skills, and attitudes towards learning. The document also notes that effective PBL involves students working in groups to answer a driving question or solve a problem, with teachers serving as facilitators. Overall, the research presented indicates that when implemented well, PBL can promote higher student achievement outcomes.