This paper presents informative and educational websites that may be used for teaching units about energy saving, in the household and in the construction of buildings. Such teaching tools are downloadable for free and consist of text, videos, images, drawings and interactive animations. All the teaching tools presented are in English, they may be used with the method that the teacher feels more appropriate. Several websites presented deal with solar heat gain, insulation and thermal storage in passive houses. Shape and orientation of the building, and their influence on energetic performances are analyzed too. The energy used for the construction of buildings and possibilities for its reduction are also discussed. In addition, the manuscript presents some educational resources that deal with earthquake resistant buildings and selecting safe places to built houses. Among the subjects dealt with in the paper there is the very positive influence, perhaps unexpected, which plants surrounding a home may have when properly selected and located.