根据第一段和第二段They may worsen your eyes,lower your academic performance,and could lead to health problems.Some other studies have shown that playing video games leads to poor concentration (注意力)in school or at work.In my seventh—grade science fair study,elementary ...
Fantastic Fun – these will be hands-on things on a single topic once a week all together. I fully expect our second grader to be in the room for many of these topics that really mesh more with seventh and tenth grade such as African geography, Latin American geography, project-based mat...