For children to achieve an understanding of science and of the ways of doing science, and for them to be motivated to use these ways in coping with, understanding, and enjoying the physical, biological, and social world around them, it is not enough that they believe that science is practically important. They must also be curious. Curiosity calls attention to interesting, odd, and sometimes important items in the drama that is revealed to us through our senses. Idle or purposeful, curiosity is the motor that interests children in science; it is also the principal motor that energizes and
The notion that science is unified in one way or another dates back at least to Aristotle, though unity claims since then have been diverse and va riously motivated. By way of introduction to the modern discussion of unity, disunity, and integration, in this first section we examine five historical attempts to unify knowledge: Aristotle’s metaphysical and hierarchical unity; the Enlightenment project of the French Encyclopedists; the systematic unity of Naturphilosophen Lorenz Oken; the methodological unity of the Vienna School’s Encyclopedia of Unified Science; and finally, the organizational