How do teachers and students create classroom environments in which mathematical errors are regarded as important opportunities for learning? What norms support students in learning from their errors, and how to these norms develop in a classroom community? This dissertation addresses these questions through a longitudinal case study investigating…

The use of bar-code medication administration technology is on the rise in acute care facilities in the United States. The technology is purported to decrease medication errors that occur at the point of administration. How significantly this technology affects actual rate and severity of error is unknown. This descriptive, longitudinal research…