First, get my Lucky 7 Presentation cards freebie, so you know what the Lucky 7 means!
It is ALWAYS best for students to assess the work of others. Not only does it teach leadership skills and fairness for being a boss one day, it also keeps them BUSY and eliminating discipline issues while students are presenting and after, when you are trying to assess, too! Teachers can also you this simple rubric for grading students' (of any age) presentations.
Collect it as a test grade and you have TWO grades out of one project! YES, have students assess themselves, too!