I make students keep a picture like this in their notebook.
If your feet are on the paper at the top in the empty space... and the book says you turn 3/8 to the right then when you finish that step your stepping foot and body* will be on the line that is labeled 3/8.
Each time you take a step you have to start over in the empty space at the top.
Sometimes I take sidewalk chalk and draw this life size in the floor at the studio (or if the studio owner is really uptight I go outside on the sidewalk). And students can actually SEE the rotation ratios they are making.