I think it`s not a problem to educate to achieve good grades,but her methods are too inhuman.She is not educating:she is merely controlling her children through her.Children should be raised with more freedom.Her educating methods also impact the future of her children.It can lead to the absence of emotions other than fear in children,or the loss of initiative.Not playing with friends can lead to a lack of social skills.In addition,these children becomes extremely fearful of failure.They will not take on challenges on their own.