Taking a look over the infographic to the right you'll notice the QFT starts with a Question Focus. This is something that typically pushes the learner to take a side or provoke deep thought. Students then produce questions in a sort of "question-storming" way that I think works best when they all contribute (in small groups) on one large chart paper (see video below) or whiteboard. The synergy that can build from this type of collaboration is powerful as students essentially "Yes, And" the thoughts of others without judging or working to answer these questions. As the RQI folks note, the shift from being asked for answers to being asked for questions can really be powerful in building a safe learning environment. As students improve and work through the remaining steps of the QFT the opportunities for meta-cognition are rich and should improve as they become more comfortable with the process.
In the course of a PBL unit there are several phases and I can see the QFT being used in all of them. Initially you want to create some sense of cognitive dissonance or emotional engagement around the project's challenge or problem and the QFT can help do that by using it as an Entry Event and hook. In PEC PBL workshops we use the QFT this way to generate questions around data showing drops in student engagement and questioning over time. We then use these questions to clarify the purpose in our resulting Driving Question for the workshop. As a classroom teacher you might engage students in the QFT as a way to better understand student passions and interests (Genius Hour/20% Time anybody?) and use that data to design a project weeks later but using a powerful Question Focus to kick your project off can generate student interest and excitement while activating their schema (buzzword alert!) and helping to start your Need to Know list.
During a project there should be multiple opportunities for meaningful assessment as students work toward craftsmanship and refining their products. What if you used the QFT to assess student understanding of a text or teaching resource/material and generate meaningful conversation much in the same way a Socratic Seminar might to help spur deeper learning and differentiate? I could also see the QFT process being employed in the service of helping students struggling to move forward with an iteration or just needing peer critique and most certainly in helping them add to their Need to Knows. What if you engaged students and experts collaboratively in the QFT around student products in a way that helped them display their thinking like and alongside actual content area experts?
As you're coming to the end of your project what if, instead of giving a traditional test, you used the QFT as a summative assessment as the video below shows? While this might force you (and your students) to think differently about summative assessments, a teacher/facilitator can learn a tremendous amount about content understanding while engaging students in critical thinking.
Ultimately the QFT is a multi-faceted tool and the beauty of it is in it's simplicity. It helps students have more of a voice and helps teachers shift from being the center of attention and thinking to to the facilitator creating scenarios allowing for great questions that effective PBL demands. It also helps create a mindset and culture where students become resourceful and empowered by their inquiry because it's just that, their inquiry. As teachers we need to ask great questions but we also need students to ask great questions. They have them but often aren't asked to share in meaningful ways. Designing great learning means we're asking questions important to our students and presenting them with opportunities to do the same. This can be a challenge at all levels but the QFT can help. For a reflection of using the QFT in elementary PBL check out: What are you wondering when you hear…?: Student Engagement in a Project-Based Learning Primary Classroom.
For more resources about Inquiry and Project Based Learning visit my PBL bookmarks and the PEC Web Site.