I can't remember where I came up with this idea, but I should say that I didn't come up with myself. I did make the worksheet, though!
I start by asking the students what their first class was today. Ordinal numbers (first, second, etc) probably come after the names of school subjects in the textbook, but usually students can understand the question. At my schools, there's usually a blackboard in the back of the classroom with the subject for each period written up. Once they tell me about the first class, I ask about the second class, and so on.
Then I pass out the papers and tell the students they can make their dream school schedule. It can be anything - three English classes per day! Four! Wow! I set the restriction that they have to have every subject at least once per week. You could even say that they have to have some subjects more often than that if you think it would make it work better. I give the students the time to write up their own schedule, and once they finish, I ask them to explain their schedule to other students. It can be a sentence like "On Monday for first period, it's English." or anything else that would work. I usually go around the class and comment on students who seem to have very unbalanced schedules. They get a kick out of twisting the school schedule to their own preferences.
I've used the subject names as written in New Crown, but you can change them if you use different terms in your class. Wednesday is a shorter day here with only 5 regular periods, so make sure and change that if it doesn't apply in your school.