Here are a few questions you can ask yourself as you evaluate whether or not AFL principles are present in your classroom:
1. Did I leave class today with the assessment data/info I need to know for sure how well my students - as a group and/or individually - understood the lesson I just taught them?
2. Did my students leave class today with the assessment data/info they need to know for sure how well they understood the lesson I taught them?
If the answer to both questions is a definite 'yes' then you obviously used assessment to enhance learning.
If the answer to both questions is a definite 'no' then you did not use assessment to enhance learning.
If you're answer is somewhere in between then you should now ask yourself, "What could I have done to assess my students so that i could know how well they comprehended and so that they would be able to analyze their own understanding?"