The teaching of Nanoscience and Nanotechnology in secondary education is still in its formative stages in Colombia, since the standards of curricular competences for the Ministry of National Education do not contemplate the introduction of these subjects into the classroom at these educational levels. “Nano- Teacher is an educational proposal addressed to teachers of Natural Sciences of Middle Education (Cycle V) for the divulgation of knowledge regarding the teaching of the concepts of Nanomaterials, based on the dimensions of Scientific and Technological Literacy. The research is qualitative and the methodology comprises of five stages: The selection of concepts, the definition of elements and structure, elaboration, implementation and evaluation. The results and analysis are performed in terms of three important stages such: As the call, selection and execution. In the call, 72 people were registered, then the selection process, finally in the implementation thirteen work sessions in which topics such as: Introduction to Nanoscience and Nanotechnology, Nanoscale, Nanomaterials, methods of observation, Carbon Nanomaterials, Nanotoxicology, among others, were covered. The results were favorable since they confirmed that if it is possible and important to approach nanotechnology topics throughout secondary education and that teachers are aware of the need to be informed of these contents that will open a sea of possibilities to achieve an impact, inspiring motivation and curiosity towards nanomaterials, further arousing the students' interest in learning science.