The methodological manual has been adapted to help teachers of secondary schools who will be involved in working in classes (groups) of informal education. With the help of this manual, they will be able to present the curriculum of basic education in a more accessible way, use the teaching methodology to better assimilate it for children in difficult life situations, and fill in the gaps in knowledge that have arisen due to their non-attendance at school. In this manual, attention is focused on working children who lagged behind their peers in school due to the fact that they were forced to earn a living for themselves and their families.