The article describes the trial experiment carried out in the groups of 3rd year students specializing in economics. It was aimed at testing the effectiveness of Content and Language Integrated Learning (CLIL) for training students specializing in economics, who worked collaboratively. In the control groups the students studied texts on economics from newspapers and magazines autonomously. The students in the experimental groups worked collaboratively with the texts from the textbook written in the CLIL format. The test conducted at the end of the experiment illustrated that Content and Language Integrated approach combined with students’ collaboration is more effective in training students for a foreign language examination than conventional autonomous work with professionally orientated texts.