Anne Collins has thirty years of teaching experience having taught all grade levels K-12 including undergraduate and graduate level courses. She has been providing mathematics content professional development institutes and courses for teachers for the past fourteen years.
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Steve Benson is a mathematician and mathematics educator at Lesley University; he has created curriculum and facilitated professional development for pre- and inservice teachers for nearly thirty years. He was the lead author of Ways to Think About Mathematics: Activities and Investigations for Grade 6–12 Teachers (Corwin 2004).