You are listening to a few songs that you really like since they are very relaxing. What part of your brain has a reward or pleasure center that is very active as you listen to the songs?

According to Piaget, during the concrete operational stage, children's thinking is

a. logical only when dealing with concrete concepts. b. logical when dealing with abstract concepts. c. abstract when dealing with concrete concepts. d. illogical when dealing with concrete concepts.

A tool is a saw if it has a toothed metal blade or disk that can be used to manually or mechanically cut hard material. This is an example of a ____________

a. prototype c. rule b. exemplar d. operational definition