Hawthorne's goal is to prevent students from dropping out of school.

Thus, by preventing certain students from taking the tests, it increased the overall scores of the school.

Homeroom has been moved to the middle of the day in an effort to prevent students from missing it.

Also this system prevents students from the chance to change their discipline during the course of their studies.

The authorities sealed the campus and prevented most students from leaving.

The Christian group said the measure could be used to prevent students from speaking against homosexuality.

Metal detectors have been installed at 15 schools to prevent students from taking weapons inside.

During the strike, there were also several reports of police preventing students camping inside from receiving food and water.

More than $120 million was spent in the last four years to prevent students from dropping out.

The schools should be allowed to concentrate on that mission, which also includes preventing students from dropping out.