Project-based learning influences engagement and retention by providing students with meaningful, hands-on experiences that connect to real-world applications. This approach fosters active participation and collaboration, motivating students to dive deep into subjects. By working on projects that interest them, students develop critical thinking and problem-solving skills while retaining knowledge more effectively. Involvement in tangible outcomes enhances their understanding and encourages perseverance, often resulting in improved academic performance and a lifelong enthusiasm for learning.