Walkabouts are great alternatives to quizzes and I use them frequently in my classroom. By posting the different pages around the rooms, and providing students with an answer sheet to record their answers on, they can begin anywhere. This allows students to move at their own pace, using notes or partners if necessary to help them answer each question.
How it works: Students will start at any of the pages posted around the room. They will write the top word on the posted page on their answer sheet as #1. Next, they will read the question at the bottom of the posted sheet and search the room until they find that answer. This becomes the answer to #2. They then go to that new sheet, read the new question and continue until they have visited each page and completed each question. If done correctly, they will end up exactly where they started! So if a student thinks they're finished, but haven't been to each question or filled out each line on their answer sheet, they have made a mistake.
Usually in class, I check the first 1 or 2 students and then assign them the 'graders'. This frees me up to watch who is answering questions quickly, who needs to use their notes, and I am able to provide help to those who are struggling, while allowing those more able students to work quickly through our review. This activity takes between 10-20 minutes depending upon how strong your students are and the frequency of which you use these activities in your classroom. My students love doing this and request this activity a lot, as it gets them up out of their seats, and they compete to be the first done.