© 2015 AIP Publishing LLC.During the period 2008-2014, the European Commission funded several large-scale projects in science education that promoted the use of inquiry-based learning for engaging young people in science. All these projects were aimed at the introduction and broader use of inquiry-based science education (IBSE) through enriching the skills of teachers by delivering appropriate teacher education programs at both pre-service and in-service levels. This paper will present on the approach adopted by the SAILS project to support science teachers in the use and dissemination of Inquiry based approaches in their own classrooms with students aged 12-18 years.