In reference to the classification of functional groups (item 2), significant advances were obtained in both groups given that 94% of students in the experimental group and 92% in the control group answered correctly, showing an effective result for both approaches. When asking “Which properties are present in organic compounds of certain material or commercial products that enable us to give them a specific use or application?” (Item 3) in both groups 18% of correct answers was obtained, a poor result associated to the fact that the question was not posed correctly.