Whether a good or bad instruction can affect the learning of students. A lot of instructors had been teaching me through out my years in school. No doubt some of the instructors are good and some of them are bad. Whether the instructor is bad or good cannot be judge by his or her education background. It is also important that they have a good way and method of treating and teaching their student. Teaching individually will be very effective, however, it will not happen in a classroom. In order to be affecting in the classroom, I think the instructor should be patient to the students, understand how people learn, be familiar with the difficulties people have with learning, then recognize these difficulties when they occur in class and know how to overcome these difficulties, and finally plan and be prepared to teach.
It is hard for an instructor to teach a lot of student with different learning ability at the same time; therefore, the primary factor to teach is patient. Patient is a primary thing to be an instructor. There are a lot of student in a classroom. The instructor should know that different person has different learning ability. Some Student may learn very fast but some learn very slowly. The instructor should not expect all students get the knowledge right after he taught. Student may ask a lot of questions or need to be explained a lot of time to understand the material. The instructor should be patient to the student when dealing with different students.
Knowing that there are a lot of materials from the book to cover in a school year, a well skilled instructor should always plan ahead for the lecture. Remember there are poorly skilled instructors too - most of us have had inexperienced or poor teachers. The instructor does not use paraphrasing or a lesson plan effectively. The instructor has a poor delivery which slow, long-winded, irrelevant, rambling, repetitious and boring. The instructor lacks the knowledge necessary to teach the new skill. They cannot solve even the simplest of problems and has lost his credibility and the respect of the class. Being a good instructor should always be prepared.