The purpose of this study was to examine the fast mapping skills in Spanish-English bilingual preschool children in two learning contexts: storybook reading and cartoon viewing. Eighteen typically developing Spanish-English bilingual preschool children completed a fast mapping task in Spanish (L1) and in English (L2). In 4 different sessions, each…

The Dirac delta function is a standard mathematical tool that appears repeatedly in the undergraduate physics curriculum in multiple topical areas including electrostatics, and quantum mechanics. While Dirac delta functions are often introduced in order to simplify a problem mathematically, students still struggle to manipulate and interpret them.…

A common learning goal for modern physics instructors is for students to recognize a difference between the experimental uncertainty of classical physics and the fundamental uncertainty of quantum mechanics. Our studies suggest this notoriously difficult task may be frustrated by the intuitively "realist" perspectives of introductory…