More class time should mean better results. This is the thinking, at least. Yet a 2001 study found that secondary schools with traditional schedules had higher test scores by comparison. Schools with block scheduling did have higher scores in science, so(though). In any case, the study agreed with earlier findings that students feel better about their schools in system with non-traditional scheduling.

更多的上课时间意味着好成绩。至少，人们是这么认为的。但是，在 2001 年的研究中发现，使用传统教学时间的中学其考试成绩比改革的好的。虽然，另一方面，实行长时教学的学校的学生其科学成绩相对较高。 无论怎样，研究发现学生更喜欢非传统时间的教学系统，这与早先研究结果是一致的。

So how useful is a longer school day? Not surprisingly, the policy experts said (at) Indiana say it is what educators do with the extra time that has the largest effect on student learning. They note a criticism but education leaders often make scheduling changes without changing the learning environment of the (a) school.  

较长的在校时间到底有用吗？不足为奇的，在印第安纳大学的政策专家谈到对学生学习影响最大的是教育在额外时间中做了什么。他们注意到一些批评，但是，教育领导总是更改教学时间但不改变学校的学校环境。

The experts say teachers must be trained to use the added time effectively. Professional development is needed. The report notes that simply adding time to a program that is not very good or very interesting will not increasing student leaning.

专家指出必须培训老师使老师可以有效的利用增加的时间。职业发展是需要的。报告注意到仅简单的增加时间用于那些不好或者没有意思的项目，是无法提高学生学习的。

Community supports is also valuable for any changes. And there is another consideration, schools many need a lot of extra money to pay for an extended day.

社区的支持对于任何改革都是十分重要的。并且，还需要考虑到其他问题，由于教学时间延长，学校可能需要付出额外的费用。