Parents and teachers worry about games having a bad effect on students， and， a large number of reports have been written about games leading to addiction(上瘾) andviolentaction. One who is addicted to games of violence might think fighting or even killing is not a very serious thing.

    But not everything about gaming is bad. For some， games are a good way to learn as well. Many games are based on history， city or planning. Such games can teach students valuable lessons of life in some ways. Some games can improve players' memory skills by asking them to perform memory exercises throughout the game in order to reach the next level. Computer games are known to improve hand-eye coordination（协调）and help players develop problem solving. Most games encourage players to meet more difficult challenges.

    Computer games have both good and bad effects. Playing games itself is not a problem， but students need to know about how much time to spend playing games and what kind of games to play. Gaming is like any other activity in life——eating too many hamburgers or too much pizza is harmful too.