This Technique is often considered a 'primary strategy' however can be adapted well to work with more mature students. Research time after time has indicated that student self reporting is not a valid indicator of student performance.
HOWEVER with one simple adjustment to your teacher wording this strategy can give you a very clear indication of the amount students comprehended your lesson. By flipping the focus on how clearly YOU taught the lesson vs how clearly they comprehended the lesson.
Ensure to set the parameters clearly.
Example:
From fist to Five how clearly did I describe covalent bonds 0 being I was speaking a different language, 2 being that with 1 more lesson I will have clearly explained it, 3 being I was clear enough that with some practice you will be able to understand, 5 being that I explained it so well that you could know explain it back to me.
By setting the parameters it allows you to put meaning behind what a 2 or a 5 actually means and by flipping the focus from the students to yourself as the teacher you are much more likely to receive honest feedback.
Another powerful use of fist to five can be seen on the video in the blogpost. A routine has been set where students utilise the cadence of rock, paper, scissors to show their answer to multiple choice questions. This removes the subjectivity of traditional fist to five