holistic learning community in Bogotá seeks help with dual language program

Two years ago we started a holistic learning community in Bogotá Colombia.  We are currently trying to implement a dual language program and looking for some guidance.  We are looking for other alternative programs that have implemented unique self-directed ELL programs?  We really want it to be unique in that it’s effective, student directed, and impactful.  We are having trouble finding any schools who have done it a different way!  Any guidance or direction would be greatly appreciated.