students to sign an ‘agreement’ in which they pledged never to use online translator nor plagiarize any source during the project. Believe it or not, this symbolic act does usually pay off.
- Ensure the language assessment is valid and fair
For a test to be valid and fair, it must test students on what they have been taught. Hence, if we are teaching students through PBL, we need to be careful about how we test them at the end of the process. To simply assess them through the finished product is not valid, as the finished product does not tell us anything about how the process has enhanced their target language proficiency and about what they have retained. Nor can we test our students using traditional tests (e.g. the ones found in textbooks’ assessment packs), unless we have taught them through tasks similar to the ones used to test them. I have had colleagues in the past, who would do a project with their students on the same topic that the other instructors were teaching through different approaches whilst knowing that the end-of-unit test they would be sitting would have been based on the assessments found in the textbook-in-use (e.g. Expo, Tricolore, etc.). Not surprisingly, their students did not perform well.
- Provide clear guidelines as to how the project is going to be assessed
I put this last, as I believe this is obvious. However, a colleague of mine advised me to add this in as, in her opinion, this does not always happen. At the very outset of the project the students ought to be told how they are going to be assessed and should be talked through any rubrics or other evaluative procedures used to feedback on the final product. In my experience, the students should be reminded several times along the way of the criteria that will be used in the assessment in order to scaffold good quality and collaboration.