EN
Contemporary societies live in a complex reality in which the only certainty is the growing pace of change. In order to meet the requirements of modern times, we need profound changes in the fi eld of educating young people who will decide about social, economic and environmental development in the future. The answer to the challenges of today is to be a sustainable development model, which is possible to achieve through well-planned and effectively implemented education. The article deals with the issue of teachers’ knowledge in the fi eld of education for sustainable development. Using the survey method, an attempt was made to answer the question: What is the level of teachers’ knowledge in the fi eld of education for sustainable development? Moreover, efforts were made to fi nd out where teachers get knowledge about education for sustainable development. 337 teachers of core subjects from Lesser Poland schools took part in the study. The results show that teachers’ knowledge in the fi eld of education for sustainable development is insuffi cient.