Student access to technology is no longer a privilege: it is a prerequisite for full participation in high-quality education opportunities. While this fundamental right to technology access for learning is nonnegotiable, it is also just the first step to equitable learning opportunities. Society must continue to ask questions about the…

Illustrated is the use of spreadsheet programs for implementing finite difference numerical simulations of chromatography as an instructional tool in a separations course. Discussed are differential equations, discretization and integration, spreadsheet development, computer requirements, and typical simulation results. (CW)

Describes a project that uses a computer and a dot matrix printer to simulate the holographic recording process of simple object structures. The process' four steps are (1) superposition of waves; (2) representing the superposition of a plane reference wave on the monitor screen; (3) photographic reduction of the images; and (4) reconstruction of…