Mathematical content focuses on the development of visualization skills, familiarity with basic shapes, their properties, and the relationships between them (e.g., transformations, similarity and congruence), the communication of geometric ideas, the process of measurement, and working with length, area and volume. The mathematical content is integrated with the approach to the teaching and learning of these concepts found in the National Council of Teachers of Mathematics' Principles and Standards of School Mathematics and the Maryland State Standards. Reflection on the van Heile model for the development of geometric understanding is integral to the course as is the consideration of relevant common misconceptions and how to address them. [ 3 credits ]