All of them except ability and stress from home life are at least partially within the teacher's control. Some to greater degrees than others. And it really depends on the grade level too...elementary school teachers can have a greater impact on many of those variables than high school teachers can.
A good teacher should be able to help their student(s) with all of the above.
Teachers of today are to concentrated on following the curriculum and rules of the schooling system, that they have forgotten what it is to be a teacher.
These are the people training our children to be able to live intelligent successful lives on their own.
So perhaps instead of jamming students with petty knowledge of things unimportant to them, we teach them the basics of learning and gaining knowledge, and use schooling to let them evolve on their own, with the guidance of teachers educated in the correct fields of learning and teaching. Not only the feeding of knowledge, but to teach a child how to start building up his own wisdom at a young age.
My personal opinion is that all teachers should attend a universal schooling system, that teaches them how to actually be successful teachers for the students of today, and tomorrow.
Well, I was thinking of influence when I voted on the poll.I find it interesting that many people think a teacher controls the curriculum. This is becoming less and less true. As more states go to state wide curriculum the teachers have less control over what they teach. Increased focus on test scores has the same result. Teachers do make their own lesson plans but they are limited on the subject matter.
Really, I'm not sure there is anything on the list over which the teacher has sole control. There are several that a good teacher can influence. What many don't realize is that teachers are the low person on the totem pole. It also seems that the trend is for them to have less control but more responsibility, if that is possible. It's certainly not just treatment.