A true necessary condition in a conditional statement makes the statement true (see  truth table  immediately below). In formal terms, a consequent N is a necessary condition for an antecedent S, in the conditional statement,  N if S ,  N is implied by S , or N S. In common words, we would also say . N is weaker than S  or  S cannot occur without N . For example, it is necessary to be Named, to be called Socrates. A true sufficient condition in a conditional statement ties the statement's truth to its consequent. In formal terms, an antecedent S is a sufficient condition for a consequent N, in the conditional statement, if S, then N ,  S implies N , or S N.
The Heart of Teaching: What It Means to Be a Great Teacher. What does it mean to be a great teacher? Of course credentials, knowledge, critical thinking, and all other faculties of intelligence are important. However, a great teacher should be much more than credentials, experience and intelligence.
A teacher's role involves more than simply standing in front of a classroom and lecturing. In fact, even though a teacher spends the majority of the day in the classroom, the actual teaching component is only part of the job.An effective teacher understands that teaching involves wearing multiple hats to ensure that the school day runs smoothly and all students receive a quality education. teacher has the power to build up or tear down a student's self-esteem and make a student's day or ruin it in an instant. When interacting with students, a teacher must fill the role of a counselor, a surrogate parent, a nutritionist and someone who has the best interests of every child at heart.