The objective was to extend UML to model the complex, emergent and multi-level decision making which occurs within modern multi- disciplinary projects.
During the final months of the school year, the teachers created other multi-disciplinary projects related to resiliency and immigration.
RSA teachers also instituted field trips to a local creek and dam in support of multi-disciplinary projects.
Each week, all RSA teachers met collectively for 1 h with the stated goal of collaborating on multi-disciplinary projects.
Philosophers have also contributed to influential international multi-disciplinary projects that seek alternative ways to measure quality of life or poverty (Nussbaum and Sen 1993, Pogge 2014).
The teachers struggled to maintain high cognitive demand regarding their own content learning goals inside the multi-disciplinary projects and grew dissatisfied with this approach.
However, the demands on each teacher to cover specific content goals threatened their efforts to integrate STEM concepts and practices through multi-disciplinary projects.
This complicated the teachers' efforts to construct multi-disciplinary projects during the summer PD, limiting their response to the school's vision.
PBL has many forms but typically involves the use of extended, multi-disciplinary projects through which "all students engage in a common project with unclear processes but clearly identified expected outcomes" (Yetkiner et al. 2008, p. 1).
As a result, while the teachers began to learn how to collaborate with each other and generated some very good ideas for multi-disciplinary projects, few classroom-ready projects were created during this time.
Students also appreciated the efforts of the teachers to work together in constructing multi-disciplinary projects, as well as the integrated approach eventually settled upon by the RSA teachers (Fig. 4).
