1. Project Zero Classroom. Harvard Graduate School of Education. Boston, USA (2008)
2. Reggio Emilia Study Group. Reggio Emilia, Italy (2009).
4. Educating on the 21st Century -University for Peace, Costa Rica (2008)
5. Rosa Sensat Summer School-Barcelona, Spain (2009)
6. Teaching for Understanding Courses-Fundación Omar Dengo, Costa Rica (2007-2010)