In other states, a certain number of years of marriage will cause a prenuptial agreement to lapse. In states that have adopted the UPAA (Uniform Premarital Agreement Act), no sunset provision is provided by statute, but one could be privately contracted for. Note that states have different versions of the UPAA.
Some believe that some association can be learned more easily than other associations learned through classical conditioning, this is called biological preparedness. It is believed that these learned associations are evolutionary important in order increase chances of survival of individuals and the species.
This is referred to as the Prepared Environment and by this is meant the physical appearance and the arrangement of the learning materials adhering to certain principles which focus on meeting the needs of the whole child. It is the teachers role to prepare and maintain this environment.