Consistent with gelman's observations of piaget's conservation tasks, researcher have found that children who engage in private speech are more their task.

The term conservation denotes the fact that two things that are equal remain so if their appearance is altered, as long as nothing is added or taken away. Private speech is the use of language for self-regulation.
Consistent with Gelman's observations of Piaget's conservation tasks, researcher have found that children who engage in private speech are more focused on their task.

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.