Chad Widener Teacher <br/>Teaching involves a the use of a wide body of knowledge about the subject being taught, and another set of knowledge about the most effective ways to teach that subject to different kinds of learner; it therefore requires teachers to undertake a complex set of tasks every minute. Many teachers experience their first years in the profession as stressful. The proportion of teachers who either do not enter the profession after completing initial training, or who leave the profession after their first teaching post, is high <br/> <br/>In the U.S. a parent-teacher association (PTA) or Parent-Teacher-Stude<wbr/>nt<wbr/> Association (PTSA) is a formal organization composed of parents, teachers and staff that is intended to facilitate parental participation in a public or private school. Most public and private K-8 schools in the U.S. have a PTA, a Parent Teacher Organization or an equivalent local organization. These organizations also occur (though less frequently) at high schools and preschools. At the local level, the goal of all parent-teacher groups is to support their schools, encourage parent involvement, support teachers, and organize family events. <br/> <br/>About Chad E. Widener :Where school class sizes are typically 40 to 50 students, maintaining order in the classroom can divert the teacher from instruction, leaving little opportunity for concentration and focus on what is being taught. In response, teachers may concentrate their attention on motivated students, ignoring attention-seeking and disruptive students. The result of this is that motivated students, facing demanding university entrance examinations, receive disproportionate resources, while the rest of the students are allowed, perhaps expected to, fail. Given the emphasis on attainment of university places, administrators and governors may regard this policy as appropriate.