The purpose of this study was to describe how states in the REL Central Region (Colorado, Kansas, Missouri, Nebraska, North Dakota, South Dakota, and Wyoming) evaluate teacher preparation programs and planned changes for evaluation. Publicly available documents were reviewed and interviews were conducted with state education agency representatives…

How do you dynamically customize the programming language available in a context within an existing system, without changing the underlying system? This dissertation introduces a language design approach that addresses this problem. The basic idea is to structure programs as systems of multiple interacting levels of abstraction, where all of the…