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that can manipulate, seeing, listened, reading, talked with instrument that used to do it.
f. System of Evaluation.
According to Mehrens and Lehman in Purwanto 1994:3 evaluation is the process of planning, getting, and
applying the information that needed to make degree alternative.
According to Purwanto, 1994:5, there are the functions of the evaluation in teaching learning, such as:
To know the development of success of the learners in teaching learning process in the certain time.
To know the grade of success in teaching learning program.
To develop and remark the curriculum.
F. The Types of Exceptional Children.
According to Chauhan 1978:470, there are four types of exceptional children, those are:
1. Intellectual Exceptional. Intellectual exceptional is related with intellectual
development. The intellectual development is affected by such factors as inherent capacity, the emotional climate, whether one
has a strong intellectual drive, and whether one has opportunist for experiences and learning. The intellectual exceptional includes the
gifted and creative the slow learner, educable mentally retarded and several retarded.
2. Physically Exceptional. Physically exceptional is related with physical development. It
depends partly on hereditary potentials and partly on such
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environment factors as food, general health, sunlight, fresh air, climate, emotions and physical exertion.
There are two kinds of physically exceptional, for instance: a. Visual impairment.
1 Low vision: visual activity between 2070 and 20200 in the better eye after correction.
2 Blindness: visual activity at 20200 or less in the better eye with correction, or visual activity of more than 20200 if the
widest diameter of the field of vision subtends an angle of the field of vision subtends an angle no grater than 20
degree.
b. Hearing Impairment. 1 Deafness: absence of hearing in both ears and a hearing
disability that prevents understanding of speech with or without a hearing aid.
2 Hardness of hearing: significant difficulty in understanding speech, even when equipped with a hearing aid.
3 Speech impairment: a disorder such as stuttering, impaired articulation, or a language or voice impairment that
adversely affects educational performance. c. Emotionally Exceptional.
Emotionally exceptional is elated with personality development, which is influenced by genetic factors as well as
by attitudes and social relationship both in the home and outside.
d. Multi Handicaps Exceptional. The children who have more than one defect given above.
G. The Concept of Visual impairment.
