This dissertation reports the results of a qualitative research project that aimed to develop a research-based perspective on the purpose of trigonometry in the modern sciences. The investigation was guided by three objectives. First, the study sought to identify the purpose of trigonometry as described by educators and high school textbooks.…

Research indicates that many elementary students do not comprehend that the equal sign is an indication that an equality relation exists between two structures. Instead, they perceive the equal sign as an indication that a particular procedure is to be performed. As students mature, and as their exposure to the equal sign and equality relations in…

Research Topic: The majority of Christian schools in the United States exclude children who have disabilities from their learning communities. This study examines the practices of 11 Christian schools throughout the United States, through conversations with a top leader in each school, that provide access to and/or inclusion in their schools.…