Research has found that students successfully complete an introductory course in statistics without fully comprehending the underlying theory or being able to exhibit statistical reasoning. This is particularly true for the understanding about the sampling distribution of the mean, a crucial concept for statistical inference. This study…

In order to take into account in a more productive, effective manner children's prior science knowledge in the development of science curricula and in the teaching of science, it is important "to know how to explore it, to know about its nature, and to consider the various ways it may, or may not be modified" (Gilbert, Osborne, and Fensham, 1982).…

To investigate the origins and nature of intuitive obstacles affecting the learning of elementary probability theory, 618 Italian elementary and middle school students were interviewed about their methods of solution for several problems dealing with probability. The discussion focuses on four varieties of obstacles to learning prevalent within…