We believe it is important to mention some constraint of the project, because we had to do extra-hour with students and make a big effort to have results.

Some limitations:

- Time in ICT classes, only 50 minuts per week with 28 students in the classroom; 

- Impossibilty to install Minecraft in all computers;

- Lack of English of the students. Need more time to prepare activities;

- Very different timetable for teachers.