In Britain, has conducted research on the use of mobile phones. The mobile phone is a device that has been very popular among teenagers. Random target was made in four major cities including London, Birmingham, Leicester and Manchester. And start collecting data since 2544, the policy to allow the phone to each school and the National Exam Results showed that after each school has a policy prohibiting the use of mobile applications. It appears that the rate of children ages 16 years increased the rate is equivalent to adding another day to five days per year. The survey also indicates that another important issue. The proportion of students score better then most of the students are learning very well. Lead to that conclusion. Permission to use the phone in school. A barrier to create a good atmosphere for learning. The rate of children with low academic performance. Moved higher, double that of children with moderate learning. And the impact on the children in the class and the group wants to disadvantaged children who need support with free food, however, for those with a good academic record. Banning the use of cell phones do not affect the rating of this group.
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