The Summer Schools have been organised by the European Association for Astronomy Education (EAAE) for European teachers. The first was organised in La Seu d’Urgell, Spain, the second was organised in 1998 in Pregene, Italy and the third in 1999, during the week of the eclipse in Briey, Prance, on the line of total darkness. We had a cloudy eclipse, but fortunately we could observe it. The fourth one was held in July 2000 in Tavira, Portugal. About 50 participants are involved in each Summer School. In the last, participants came from 14 countries. The activities are organised in General Lectures, Working Groups and Workshops for reduced groups and day and night Observations. To increase communication, each Summer School has three official languages: the language of the host country, English and another well-known by the participants. The proceedings are published beforehand with all the contents to facilitate participation. Each paper appears in English and another language.