Many opponents of enhanced methods of teaching argue that using those interactive methods of teaching may transiently improve children knowledge or skills and that such skills may not be mature or stable in comparison with those of traditional methods of teaching. Opponents also argue that supporters of new methods ignore the serious drawbacks of those methods particularly games in promoting violence or addiction and time consuming. Further, if the Internet is involved in those methods, the risks that those children may be accidently exposed to pornography or in-proper websites can be serious and catastrophic.