Understanding students' learning of knowledge components (KCs) is an important educational data mining task and enables many educational applications. However, in the domain of computing education, where program exercises require students to practice many KCs simultaneously, it is a challenge to attribute their errors to specific KCs and,…

Despite their importance in public discourse, numbers in the range of 1 million to 1 trillion are notoriously difficult to understand. We examine magnitude estimation by adult Americans when placing large numbers on a number line and when qualitatively evaluating descriptions of imaginary geopolitical scenarios. Prior theoretical conceptions…

Assignment of ESEA Title III monies to State agencies mandates a research model for needs assessment to facilitate interstate comparisons and generalizations. Theoretical postulates for and empirical evidence from the Virginia Needs Assessment Project suggest a prototype design, moving in three phases from ideas into program outcomes. Phase I…