Fix the route you walk between the student's desks.

3.Moving around the classroom

... Continued from the previous blog.

You shouldn't walk intuitively the way that you guess it would be better. You should walk the exact same route every time.
For example, The one sample route can be as below. It's OK if you won't walk as same as this.
The important thing is the route is the one you can look at all the students, in the same way, equally.