This study spans several years of data collection by the Learning Mathematics for Teaching (LMT) project. This project's main purpose was to develop a suite of instruments measuring K-8 teachers' Mathematical Knowledge for Teaching (MKT). These instruments are typically used to evaluate content-focused mathematics professional development. Over the years, this project piloted these measures in several contexts to establish psychometric properties of the instruments:
- With a nationally representative sample of middle school mathematics teachers in 2005 and again in 2006. The same sample was surveyed at both time points.
- With a nationally representative sample of elementary school teachers in 2008.
- With smaller samples of grade 4-8 teachers on specific mathematical topics (e.g., a form on rational number, a form on proportional reasoning).
The specific research questions varied with the sample. For the later pilots, we were interested in the psychometric properties of the measures and teacher scores' relationship to other teacher characteristics, such as their mathematical background and years of experience.
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