It’s easier implemented as a full school and not in a seperate programme.
Teachers design a menu of interdisciplinary projects based around themes or phenomenon that have a focus on key existing curriculum.
All non-teaching / personal time slots are simultaneous for all. This means all teachers, rooms and resources are timetabled for simultaneous use, meaning each teacher shares the load and you have smaller student numbers to monitor on either a project and mentor group.
Consider Zoning groups of classrooms into Project zones. The usual 5 teachers from 5 rooms are timetabled into the zone to each mentor their smaller number of students.
All teachers take on a general academic mentoring group to focus on learning and project progress.
Teachers share the planning and monitoring of projects which makes the measuring of progress more palatable than traditional standardised teaching and marking.
Projects can be designed generically enough around a theme or phenomenon that they can be simultaneously offered to different age groups with appropriate expectations for outcomes. This can save teacher workload.
If I had a desert island EdTech, it would be blogging, and that is not just in a nostalgic sense. No other educational technology has continued to develop, as the proliferation of WordPress sites attests, and also remain so full of potential. I’ve waxed lyrical about academic blogging many times before, but for almost every ed tech that comes along, I find myself thinking that a blog version would be better: e-portfolios, VLEs, MOOCs, OERs, social networks.