Taking into account my personal teaching context, what would be the advantages and disadvantages of using the ELP with my groups?

From my point of view the use of European Language Portfolio has a lot of advantages for students and teachers.

The teacher of Content and Language Integrated Learning, we find a guide in the ELP because allow us to know what we have to evaluate our students, what can we expect from them and in an international way we can do projects together because we can know the real abilities and skills of the other group. At European level the ELP standardized evaluation criteria, allowing mobility and sense of European integration.

If there are benefits for teachers, as the evaluation criterion is fixed and standardized for students also we can find advantages too. The European Language Portfolio allows students the peer evaluation, as in Evaluation criteria are based on "I can do" what my abilities allow me to do. Theses criterias enable students know that is expected of them, the students can standardize their knowledge, can looking for a job in other country because they have  qualified certificate level and encourages lifelong learning.

Finally, the European Language Portfolio is a tool lower linguistic assessment has great benefits for both teachers and students.