AAAS and the National Research Council have recently called for a radical shift from didactic science instruction to a more inquiry-based model.  But, if we are going to ask kids to engage in serious science inquiry, going beyond writing a 2-page report that they can get by copying from an encyclopedia, we need to provide them with a whole new set of tools — technology-based tools. Moreover, if we are truly committed to educating all our children, the only way to address the diverse needs of all these learners is via learner-centered technology. From the Series:CSE Colloquia - 1999