改作业 meaning in Chinese

correct students

You wanna help grade assignments ? we ' re teaching kids to bubble in
你想要帮忙改作业吗?我们在教小孩子涂圈呢
I always mark with a red pencil so that the mistakes are easy to see
我总是用红铅笔改作业，以便使错误一目了然。
The teacher said he thought the devices increased the youngsters ‘ motivation to write and revise their work
这位教师认为掌上电脑激发了孩子们写作业和改作业的兴趣。