The word ''presentation'' may be somewhat misleading. The term refers to both written and spoken "products''. In other words, it is the stage where students ''present'' the results of their learning process.
If you choose to have your students give a presentation of their research findings in class, you may find it useful to assess their performance by making use of the CEFR assessment grids developed by SLO. Alternatively, you may prefer to have your students present their research findings in written form. Obviously, the result of either assignment could well be used as (part of the) School Exam (SE).