The paper provides an insight into the results of a lesson designed and carried out at Riga Construction College in the study subject "Building Constructions". The aim of this study is to better understand the impact of learning environment reorganisation into juvenile groups while teaching technical study subjects. In particular, the research conducted at this vocational secondary school focused upon introducing a particular form of integrative collaboration amongst the learners. Criteria were developed to respond to the question: How is the organisation of the learning process based on the Learners' Integrative Collaboration Model changing? A formative teaching experiment, which analyses learners' integrative collaboration through structured observation at the beginning and end of the acquisition of the study subject "Building Constructions" points at positive changes associated with the model's criteria: working in a team, mutual learning, business communication and creativity action.