My current critique practice, especially in my intro classes involves teaching students how to critique. I try to make each successive critique a step towards effective critique, which may take an entire semester to develop.
Several years ago I started having students put their first projects up on the wall randomly and instead of critiquing each student in their turn, I ask students to pick out the images they find most effective, no ownership attached. What results is a shorter critique session (so far no one has fallen asleep!), more attention paid to what’s working with successful images, and a greater incentive for students to be involved and pay attention at each stage of the process. I expect the students to be doing the bulk of the talking, my responsibility is to round out the critique, or provide indepth feedback that they might not yet know how to express.
Now that I am teaching a digital photography curriculum in intro, I have the students drop jpg copies of all their photos from the first assignment into a general folder. I project them as a slideshow and students yell stop! when they see an image of interest that they want to talk about. In this way, we emphasize that critical learning is for everyone’s benefit, not just the individual maker of the image. I have found that students are more likely to ask or answer questions about technique this way, especially as the images are so large and immersive when projected.