Teenagers. Recently,I have listened to lecture about thinking of teenagers.There were very interesting points.For examlpe, little children usually tend to think in concrete, black-and- white notions.But,becaming adult,,teenagers begin to percieve grey areas and acquire independent thinking.They rethink that were learnt. At times,it could cause to misunderstanding with their parents. In this period,some teenagers could be agressive or,on the contrary,reserved and withdraw.Many parents find communication with their teenagers very difficalt,because even usual conversation could snowball into scandal or argument.