Pro
Survey data and anecdotal evidence show that some students spend hours nightly doing homework. Homework overload is the exception rather than the norm(http://www.nea.org/tools/16938.htm)
#1Doing homework is a waste of time
In our opinion, doing homework is just wasting time since teachers hardly give feedbacks. What is the meaning for doing homework if we don't really know we are doing wrong or right? We spend a lot of time writing the same grammar mistakes, calculating mistakes and so on. After times writing, the mistakes become the "correct answers" in our mind which is harmful for our tests.
#2Homework makes students under too much pressure
After a day's study and practice, student are already very tired. However, we still have a bunch of homework to do. How disappointing it is. We have no time to chat with friends and parents, improving our skills and hobbies and knowing what is happening around the world since we not only have to do homework but also prepare for many tests.
Con
according to research from the Brookings Institution and the Rand Corporation (see the Brown Center 2003 below). Their researchers analyzed data from a variety of sources and concluded that the majority of U.S. students spend less than an hour a day on homework, regardless of grade level, and this has held true for most of the past 50 years. In the last 20 years, homework has increased only in the lower grade levels, and this increase is associated with neutral (and sometimes negative) effects on student achievement.(http://www.nea.org/tools/16938.htm
#1Doing homework can strengthen the knowledge students learn
During the 50 minutes' study in class, students cannot memorize all the knowledge. In order to deal with the problem, teachers give students homework to practice, and figure out their own weaknesses. Although teachers may not give feedback every time, students can ask questions during extra help after they find out their own problem.
#2Doing homework can help prepare for the tests.
We all know that we have many tests. However, studying before the tests really cannot help a lot. Students should study every day to memorize the key point little by little rather than anxiously review at the night before tests. Doing homework is the best way to review knowledge. It requires students to combine concepts and applications together and make students be ready for the exams.
Video Games are Too Violent
Pro
New research suggests that hours of exposure to violent media like video games can make kids react in more hostile ways compared to ones who don't spend lots of time controller-in-hand, reigniting the debate about children and gaming
(http://time.com/34075/how-violent-video-games-change-kids-attitudes-about-aggression/
#1Many video games contain violent contentsThere are many video games contain violent contents such as fighting, killing and guns. Many people start to play video games at a very young age. This kind of game may change their mind and ways of treating others and even cause huge trouble like fighting with or even killing people when they have argument with others.
Con
#1Video games can train children to work with group members
Only some video games are violent, others are not violent but educational. Many games need people to play in groups, these kind of video games can trigger the sense of teamwork for children which is really good for their future lives.
#2Video game can increase students' intelligence
In order to win the video games, players have to think and plan for the games which can make them become more smart and careful. This is good for their study and work since those things also need people to plan in a detail way.
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