### 30+ Lessons and Support Materials

EMP has developed more than 30 lessons and corresponding support materials spanning 5 key mathematical content areas, or units. This work consists of two development phases. First, we developed, tested, and revised written lesson and instructor support materials to enhance a year-long sequence of two mathematics content courses for undergraduates who are preparing to become elementary and special education teachers. Second, we are now developing multimedia support materials (classroom videos and presentations) for instructors to assist them in enacting the EMP learning materials.

The primary teaching strategy built into the EMP learning materials is the focused use of discussions and argumentation to further pre-service teachers’ ability to explain, justify, and generalize key mathematical ideas. Our written and multimedia support materials provide instructors of pre-service elementary teachers with detailed guidance on using discussion-based pedagogy based on research findings and our collective experiences using the EMP lessons.