yes.i think so.
my points are based on 3 aspects.
1.high school shoud teach students not only what to learn,but also how to learn.the art and music can motivate their way of learning,which can make study easier.
2.students need rest,keeping learning basic science will depress their learning efficiency.
3.the world is competitive,students should know comprehensive knowledge.
其他的自己补充吧~