Which of the following best illustrates qualitative differences in thinking?
a. Dennis used to be able to solve only one algebraic equation but can now solve two simultaneous algebraic equations.
b. Jennifer used to think that food disappeared when we ate it but now knows that our body changes it through digestion.
c. Ann used to be able to find the longitude and latitude of points only on a plane map, but she now can find longitudes and latitudes on a globe.
d. Al knows that force is a push or a pull, so he now concludes that magnets exert a force on some metal objects even though the magnet isn't touching the object.
Question 2
People sometimes argue that students shouldn't take education courses as undergraduates, because they aren't meaningful. Colleges of education have responded to this criticism by providing field experiences for the undergraduates. This can be viewed as a step in the process of developing preservice teachers' abilities to teach. Of the following, the best explanation for the value of field experience according to Piaget would be that it:
a. helps preservice teachers begin to deal with abstract concepts.
b. provides a form of concrete experience for the abstract concepts preservice teachers must understand.
c. enhances preservice teachers' maturation.
d. provides the necessary social interaction to improve preservice teachers' communication skills.
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