Lewis Hosie

Manager of Courseware Development and Implementation

Lisa Savčak

Assistant Director, Communication and Partnerships

Marley ArechigaCommunications Coordinator

Marley Arechiga is the communications coordinator for Carnegie Math Pathways, providing written and visual communication support for the Pathways team. She started with the program as an administrative assistant in 2015 and later became a communications assistant before transitioning in 2020 to her current role. Since 2013, she has worked in the education and nonprofit sectors, as well as in print and radio journalism. She is based in Southern California.

Rachel BeattieDirector of Productive PersistenceCarnegie Math Pathways

Rachel Beattie is the Director of Productive Persistence for the Carnegie Math Pathways. She oversees the research, development, and evaluation of the social-psychological interventions that are integrated into the curricula, pedagogy, and professional development programs. She has over a decade of experience in leading psychological and cognitive neuroscience studies of reading, language, and mathematical development. Rachel has a BSc (Hons) in Psychology from Staffordshire University and an M.A. and Ph.D. in Developmental Psychology from the University of Southern California. Rachel has taught courses on research methods and learning and memory at Occidental College and the University of Southern California.

Ann EdwardsDirector of Research and Implementation Carnegie Math Pathways

Ann Edwards is the Director of Research and Implementation for the Carnegie Math Pathways. She directs research strategy and oversees the development and implementation of the curricula, pedagogy, assessments, and professional development programs. She has over 25 years of experience in mathematics curriculum development, teaching, teacher education, professional development, and mathematics education research in secondary and post-secondary contexts. Ann has a B.A. in Applied Mathematics from Harvard University and an M.A. and a Ph.D. from the University of California, Berkeley, in Education in Mathematics, Science and Technology.

Carolyn EspinozaEvent & Project CoordinatorCarnegie Math Pathways

Carolyn Espinoza is the Event & Project Coordinator for the Carnegie Math Pathways program. She oversees the logistics of the Carnegie Math Pathways events, supports general operations, and works with CMP finances. Carolyn has her California Multiple-Subject Teaching Credential and has worked as a teacher in the United States, China, and Chile. She has B.A.s in Child Development and Spanish as well as a M.A. in Education from Whittier College.

Richard-Thomas HaffInstructional System Support AnalystCarnegie Math Pathways

Richard-Thomas Haff provides Help Desk support and analysis in his role as Instructional Support System Analyst with the Carnegie Math Pathways team. Previously, Rich served in multiple roles during his eight years at GENEX/Mitchell, ranging from administrative support to senior-level specialist. Rich also has experience working with student athletes as the head senior coach of the Baldwin Swim Club in Pennsylvania. He earned his B.S. in Applied Mathematics at the New Jersey Institute of Technology in 2013 and is based in Pennsylvania.

Lewis HosieManager of Courseware Development and ImplementationCarnegie Math Pathways

Lewis Hosie manages digital content, courseware configuration and functionality, technology integrations, and advises on implementation matters relating to Carnegie Math Pathways courses. He also oversees the Carnegie Math Pathways help desk and associated support infrastructure, and coordinates and facilitates faculty teams for curriculum enhancement and technology improvements. He has a B.Sc in Mathematics, Statistics, and Economics from Strathclyde University, a postgrad cert in English Linguistics from Birmingham City University, and MicroMasters credentials in Instructional Design and Technology from the University of Maryland (Global Campus).

Karon KlippleExecutive Director Carnegie Math Pathways

Karon Klipple leads the Carnegie Math Pathways program. She has extensive experience in teaching and mathematics program reform, including at San Diego City College, where she was Associate Professor of Mathematics, as well as experience as a product manager for scientific software. She has taught statistics and mathematics at the community college, high school and university level. She holds a B.A. in Mathematics from Trinity University and a Ph.D. in Statistics from Texas A&M University.

Dan RayDirector of Network Relations Carnegie Math Pathways

Dan Ray is the Director of Network Relations for the Carnegie Math Pathways. In this role, Dan leads the continuous improvement of various administrative and instructional supports for Pathways teams providing guidance, training, and support resources. He works closely with Pathways Faculty Mentors and Administrative Coaches to assist institutions as they implement Pathways courses, expand student access, and share their knowledge and expertise with other network institutions and faculty.

Lisa SavčakAssistant Director, Communication and PartnershipsCarnegie Math Pathways

Lisa Savčak is the Assistant Director of the Carnegie Math Pathways. Lisa manages communication and strategic outreach for the Pathways and serves as network director overseeing partnerships with Pathways implementing tribal colleges and universities. Previously, Lisa worked in the field of international education and development, managing U.S.-based professional development programs for high school teachers from over 45 countries. Lisa has B.A. in Political Science from the University of Northern Colorado and a M.A. in International Studies from the University of Denver.

Scott StrotherManager of Curriculum and EvaluationCarnegie Math Pathways

Scott Strother is the Manager of Curriculum and Evaluation and leads a nationwide team of faculty who continually improve the Pathways curricular resources. He also leads evaluation, analytics, and data-driven initiatives for continuous improvement for the Pathways. In other research and evaluation work, he has implemented a range of methodology approaches to study educational technology and programs, products, and professional development, from national, state, and district initiatives to classroom implementation studies. Scott has taught statistics at the University of Louisville where he received his Ph.D. in Experimental Psychology.

Brian SulcerLead Web Application DeveloperCarnegie Math Pathways

Brian Sulcer is the Lead Web Application Developer for the Carnegie Math Pathways. He develops and maintains the online systems that comprise the Pathways instructional platform. He has over 26 years of experience in software development in business and academic environments, with an emphasis on building educational software systems. Brian has a B.S. in Computer Science from Middle Tennessee State University and a M.S. in Computer Science from Vanderbilt University.

Our Team

Marley Arechiga

Rachel Beattie

Ann Edwards

Carolyn Espinoza

Richard-Thomas Haff

Lewis Hosie

Karon Klipple

Dan Ray