As teachers attempt to incorporate AFL strategies into their daily practices it is helpful to have criteria to determine the "AFL-ishness" of an activity. Here are two (but by no means the only) questions a teacher can ask to reflect on how a specific activity falls in line with AFL principles.
1. Did the activity I did in class today allow my students to leave my room knowing what they need to know, what they do and don't know, and what they need to do to improve?
2. Did the activity I did in class today allow me, the teacher, to leave the room with a clear understanding of what my students do and don't know so that I can plan to meet their ongoing needs?
If what you do in your classroom allows either or both of these to occur, then you have just done an AFL activity. Everyday, students should be guided in a direction that allows them to become more aware of their level of understanding so that they can then adjust their learning efforts. And by the end of each class, the teacher should have assessed students in a manner that allows him or her to get a solid read on how well students, at times individually and at times collectively, comprehend.
So take a look at an activity you have planned. Will it lead to a "yes" response to either of those questions? If not, then can it be altered to do so?