The unprofessional bad model Teacher is the major Influencer of Retardation

The unprofessional in this context refers mainly to a teacher who abuse teacher
professionalism. It is not just academic qualifications that is required to a teacher but also the professional skills.
A teacher may have subject knowledge but not fully equipped with professional skills and teaching techniques. Unprofessionally knowledgeable teacher rarely possesses the knowledge of the social development of children ,ethics and the skills in using this knowledge in the classroom. Individual difference need to be taken seriously in the classroom. The teacher should be able to identify and to know how to deal with some of the personal problems children might have in the classroom.
For children to learn effectively ,it is not enough for the teacher to merely present them with learning materials. The methods in presenting the materials and effective use of the learning resources are important.An unprofessional teacher is unlikely to possess the skills and the most advantaged are pupils.
The teacher must have sound knowledge of different cultures in the community in which the school is located. Religious beliefs, dressing and types of foods are some of the important aspects of culture that need to be known and observed. Adverse comments in the classroom pertaining to what a child values culturally might disturb and inhibit learning in the child .Depends on the degree of disturbance that could lead to retardation. The child might become shy and withdrawn ,depressed and even aggressive as a defensive mechanism against being laughed at by classmates.
An unprofessional teacher may concentrate on subject content ,ignoring some of the essential issues in learning. Purposeful activity by pupils are important aid to learning. Learning experiences for children ,individual capacities ,motivation ,personality and the growth of skills are some of the aspects the teacher should be acquiented with.
The teacher as a bad model:Infants respect their teachers than their parents and they believed in whatever their teacher say ,even wrong things than to correct their parents when they make mistakes. They confidently argued that the teacher is always right and never go wrong. The teacher is an influential figure to the pupils .The pupils observe and in many cases copy their teacher's behaviour ,if the teacher is harsh ,intolerant and bad-tempered ,this behavioural patterns is likely to be in the children, as a result children are likely to become indifferent and care free. This tendency might inhibit learning . Some children may either withdrawn or tired ,because of fear of their teacher , some lead to a certain form of retardation.
Self Fulfilling Prophecy:Teacher's expectations can seriously influence the pupils 's academic performance. These teacher's expectations may be known as self fulfilling prophecy. Where a child notices teacher's higher expectations of him/her ,the pupil feels encouraged,motivated and puts more efforts in school work. Contrally a child
who senses that the teacher has low expectation of him/her is likely to feel discouraged ,unhappy ,disgraced and indifferent to his /her school work. Consequently his /her performance in learning might be affected.In this regard the teacher 's expectation is fulfilled.
Criticism:Learning can be inhibited if a teacher isn't sensitive to the needs and feelings of pupils. Every pupil needs the teacher's support and encouragement .Criticism can be both constructive and destructive to a child. These children usually insult ,ridicule and at times give precise
malicious criticisms of each other. However this if taken by the teacher ,children emulate and the children at whom criticism is laid against ,are the sufferers. They eventually become demotivated and withdrawn. This could cause retardation . Criticism is important but if improperly done or overdone can be more destructive.
Competition:Like criticism ,reinforcement of competition can be destructive to children.The teacher who praises and encourages some children at the expense of others in the classroom. Gibson (1976:450) gave a common example which commonly done by teachers in the classroom. The teacher instructs a pupil who has problem in changing fractions to its lowest terms in mathematics to come on front of other classmates . The child walks to the front head down filled with the deadly sense of fear.The fraction problem:9/15 =6/5 according to the said child instead of 9/15 = 3/5.
Then the teacher said my little daughter who is younger than this child instructed to give example on the board can able to reduced this fraction in its lowest term.
If the teacher condemned this child in view of the whole class who really can help this child.Obviously most of the children will applause a louder laughter.In this case the teacher is reinforcing the other children at the expense of one child. The child will not likely feel out of place discouraged and may abandon some of the lesson simply because of lack of confidence both in self and the significant others . What considered simply done even little young children in the sense of most unprofessional teachers is complex because of the cognitive level of development so the teacher should serious make it into considerations.