I make an assumption that every student in my class has an ability to learn what I am teaching and to perform well in the course. I maintain an attitude that every student can be successful and then I make it my mission to see that every student in my classroom has whatever support they need to allow this success to happen.
Some of my students will need support of various sorts from tutoring on lecture materials to remedial work on missing skills. Many of my students already know what they need for support and come to my classroom with documentation of needs. Some of my students have no such documentation and yet may struggle with various obstacles to success. I provide as much support for any and all students as I can by maintaining undergraduate teaching assistants to help students with lecture material.
I also provide tutors for basic writing skills, tutors who are computer-literate to help with computer skills and a course website with various links to helpful resources. As for my own role, I make myself available to my students for time to talk about any aspect of academic life they choose. I let them know, at least once a week, that I am available if they need me. When we meet I am non-judgmental and I try to convey to the student my belief that they are capable of mastering any aspect of my courses.