What is said as a prelude to the issue of sampling is what was said in the introduction to Multi models holograms, Teacher always trying to provide real experience for his students, but may face some difficulties that may impede the achievement of those noble purpose, it has resorted to the use of the sample substitute for that experience real and unreal. The teacher when he wants to talk about the contents and components of the Nile River, for example, he takes a sample in a beaker, for example, and when he wants to explain the components of the soil to a certain area, it replaces it with a handful of them. The flask and a handful of soil sample what is called the sample?
Definition of the sample:
Are part of something or subject, so as to be representative of the characteristics of the thing or the subject, may be alive sampled fish. Plant in the basin and in the nursery may be dead as part of the plant as a card, for example, may be a sample of Max sampled rocks and minerals, money, clothing and liquids.
التسميات
Teaching Aids