Implementing Project-Based Learning in Secondary Education: What Works

What project-based learning is

In project-based learning (PBL), learners spend an extended period investigating a real question or problem, and finish by creating something for a real audience. It sits alongside, not against, other teaching methods. Many excellent schools use direct teaching, PBL and other approaches together.

What the evidence says

PBL has a growing research base. A meta-analysis of 30 studies across nine countries found a medium-to-large positive effect on achievement compared with teacher-led instruction (Chen & Yang, 2019). In a randomised controlled trial of Advanced Placement courses, students taught through a project-based approach were 8 to 10 percentage points more likely to pass their exams (Saavedra et al., 2021).

The research is equally clear on a caveat: results depend on quality. A review by MDRC found that outcomes vary widely with how well PBL is implemented (Condliffe et al., 2017). Learners do best when inquiry is well scaffolded, with clear structure and teacher guidance (Hmelo-Silver, Duncan & Chinn, 2007).

Five design principles

• Start with a strong driving question. It should be open-ended, challenging and linked to curriculum goals. For example: “How should Bangkok protect its communities from flooding?”
• Teach the knowledge learners need. Projects work best when key content and skills are taught explicitly along the way, not left to chance.
• Build in milestones and feedback. Regular checkpoints keep projects on track and give learners chances to improve their work.
• Give learners real choices. Choice of topic, method or final product builds ownership and motivation.
• Share work with a real audience. Presenting to families, experts or the community raises the quality of work and makes learning matter.

What changes for teachers and learners

For teachers, PBL means acting more as designers and coaches: planning projects, teaching key content at the right moments, and giving ongoing feedback.

For learners, it means taking more responsibility: managing time, working in teams and presenting ideas. A history unit might grow from a research essay into a short documentary or community exhibition. Learners would still research, write and analyse, but would also interview people, plan, edit and present.

Our experience at WeLearn

At WeLearn Academy, PBL runs alongside each learner's academic pathway for learners aged 11–18. Coaches guide projects in areas such as robotics, design, research and media, with regular milestones and one-to-one mentoring. We find that learners who see the purpose of their work engage more deeply, and that structure and coaching are what make the difference.