[apple annie]

If you are there to support the homeroom teacher, it seems to me that you need to sit down with her and get very clear on what support she needs and how you can best be effective in her class. Find out what individual students' goals and challenges are, and brainstorm with her to come up with ideas and a plan for which students can benefit from your attention and lessons, and what you can do for them. I don't think it's your job to be the class disciplinarian. You need to have objectives and planned learning outcomes, and then use your own methods for management when you pull a small group of students.