Our Team

Meet the brilliant people who make up our dedicated and fearless team.

STAFF

Director of Partnerships, Ecuador

Director of Global Operations

Operations Coordinator, Guatemala

Director of Global Partnerships

Executive Director

Math Coach, Guatemala

Director of Programs, Guatemala

Individual Giving Manager

BOARD OF DIRECTORS

Professor of Mathematics at Indiana University of Pennsylvania

Real Estate and Private Equity Investor

Marketing Strategist

Past President of National Council of Teachers of Mathematics

Educational Technology Entrepreneur

Founder of FairRate

Cofounder of T2TGlobal

Board Secretary, Cofounder and Brand Director at T2TGlobal

Mathematics Educator at Carrboro High School, NC

Board Past President and Mathematics Educator in Colombia

Professor of Mathematics Education at Rutgers University-Newark

Board Treasurer and Former Executive Vice President at T2TGlobal

Mathematics Education and Publishing Consultant

Vice President of Inter-American Committee on Mathematics Education

EDUCATION ADVISORY BOARD

Professor of Mathematics at Indiana University of Pennsylvania

Professor of Education at the University of Louisville

Executive Director of the California Mathematics Project

Professor Emerita of Mathematics Education at North Carolina State University

Professor of Childhood Mathematics Education at CUNY-Brooklyn College

Mathematics Curriculum Developer

Assistant Superintendent at Troy, Illinois, School District

Professor of Mathematics Education at Central Connecticut State University

Board Chair, Principal Researcher at the American Institutes for Research

Founder of Looney Math Consulting

Founder of ¡Aja! Parque de la Ciencia

Author and Mathematics Educator

Professor of Mathematics Education at Rutgers University-Newark

President of the Inter-American Committee on Mathematics Instruction

Vice President of Inter-American Committee on Mathematics Education

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Pao Castillo, MEd

Director of Partnerships, Ecuador

Pao is based in Quito, Ecuador, where she worked as a math professor at the Universidad de San Francisco de Quito (USFQ). She taught statistics and researched mathematics teaching and learning as part of the Ecuadorian delegation of the Capacity and Networking Project organized by the International Commission on Mathematical Instruction. She has a bachelor's degree in mathematics from USFQ, as well as master’s degree in education through the Instituto Tecnológico y de Estudios Superiores de Monterrey (Mexico). Her interests outside of mathematics and her family include music, soccer, and painting. 

Manuela Cea-Poblete, MA

Director of Global Operations

Manuela brings over ten years of experience gained in various NGOs and nonprofits around the world. A Chilean and Londoner, Manuela has always had strong connections with the Latin American community. In 2015 she made the move to Guatemala and spent two years as T2TGlobal’s country director. She now makes her home in Barcelona, Spain, where she oversees T2TGlobal’s financial and administrative operations. Manuela earned a bachelor’s degree in multimedia journalism at England’s Bournemouth University as well as a master’s degree in anthropology of childhood, youth, and education at Brunel University in London.

Hans del Cid

Operations Coordinator, Guatemala

Hans is a graduate of the National State University of Guatemala, where he completed his studies in linguistics. He has worked as a translator and interpreter on many T2TGlobal trips, including the 2013 inaugural visit to Santa Avelina, Guatemala. Hans’s in-country presence extends to managing business dealings for T2TGlobal. Hans has done volunteer work in rural areas of Guatemala, as well as coordinating volunteer groups that served in a project area of the landfill area of Guatemala City.

Callie Herring, MA

Director of Global Partnerships

Callie is based on the coast of Ecuador, where she leads T2TGlobal’s global partnerships. She studied elementary education at Appalachian State University and has a master’s degree in bilingual education from the University of Texas at the Permian Basin. A former Teach for America member, she has taught in North Carolina, Costa Rica and the Dominican Republic. Callie’s deepest desire is to expand opportunities for students from marginalized communities by using education as a tool for social justice. Her favorite place to be is a classroom, followed by any beach, as long as her rescue pitbull comes along.

Ali Jones

Executive Director

Ali provides the leadership that enables T2TGlobal to carry out its mission. Since a trip to Nepal in 2008 opened Ali’s heart, she has thrown herself into nonprofit work. Ali feels passionate about empowerment through education, and she has applied her exceptional skills toward improving the lives of children around the world. Fluent in Spanish, Ali has traveled to more than 30 countries to volunteer, work, study, and explore. On the rare occasions when Ali is in the US, her home base is Austin, Texas. 

Fátima Santos

Math Coach, Guatemala

From her classroom in Sacatepéquez, Fátima witnessed strides being made when T2TGlobal coaches visited her school. She now has taken a leadership role in coaching her peers. She has worked as an elementary and middle school teacher after gaining her Teaching Associate’s Degree in Middle School Education with a focus in Physics and Mathematics from the University of San Carlos de Guatemala. She is currently working towards a Bachelor’s Degree in Middle School Education Pedagogy with a focus in Natural Science. 

Alix Van Zandt, MA

Director of Programs, Guatemala

Alix came to T2TGlobal following two years developing curriculum and training local teachers for a school in rural Guatemala that empowers indigenous girls through education. She has lived in Guatemala since 2014 when she was placed in Antigua, Guatemala, as a Princeton in Latin America Fellow at Antigua International School. Originally from Seattle, Washington, Alix earned her bachelor’s and master’s degrees from Stanford University in Political Science and Latin American Studies, respectively. She has lived and worked abroad in Panama, Spain, and Guatemala.

Suhailah Waheed

Individual Giving Manager

Suhailah brings her resource development expertise to support T2TGlobal’s mission. She is happiest at the intersection of technology, stewardship and fundraising. Prior to joining the T2TGlobal team, she worked for nonprofits focused on such issues as clean water and women’s leadership. A North Carolina native, Suhailah earned her bachelor’s degree from North Carolina Central University. She then relocated to Austin, Texas, where she can be found enjoying the sunny weather while eating the most colorful macarons in town.

Francisco Alarcón, PhD

Dr. Francisco Alarcón is a professor of mathematics at Indiana University of Pennsylvania. He grew up in Guatemala City and completed an undergraduate degree (Licenciado en Matemáticas) at the Universidad del Valle. He then moved to Iowa City, Iowa, and completed a PhD in mathematics at the University of Iowa. His teaching experience has included teaching mathematics and statistics at the high school, community college, and college (undergraduate and graduate) levels. Dr. Alarcón’s research interests are wide-ranging and include abstract algebra (commutative semiring theory), professional development of teachers, technology in mathematics instruction, and ethnomathematics (particularly mathematics of the Maya culture).

Hunter Bost

Hunter Bost is cofounder of McDuff Capital, where he focuses on small manufacturing, as well as multifamily, residential, and commercial real estate development. Previously, he was a principal with Electra Partners, where he put his fluent Spanish to use managing the firm’s Latin American investments. A graduate of the University of North Carolina at Chapel Hill, Mr. Bost currently lives with his wife and sons in Durham, North Carolina.

Cynthia Kastner

Cynthia Kastner is vice president of T2TGlobal’s Board of Directors, who is a marketing and communications strategist for socially conscious businesses. She helps entrepreneurs and small business owners effectively communicate their mission to their audiences. Raised in Venezuela, she is passionate about intercultural communications. A graduate of the University of Vermont with a degree in business administration, her work experience has encompassed Latin America, Europe, and the US. Ms. Kastner now uses her marketing superpowers to help the greater good. She lives in Chapel Hill, North Carolina, where her son and rescue dog keep her busy.

Linda Gojak

Linda is current Board president of T2TGlobal as well as past president of the National Council of Teachers of Mathematics. After teaching math in grades 4-8 for more than 20 years, in 1999, she became the first director of the Center for Mathematics Education, Teaching, and Technology at John Carroll University in Cleveland, Ohio. She has received several teaching awards, including the Presidential Award for Excellence in Mathematics and Science Teaching. Ms. Gojak has authored a series of books on problem-solving for grades 3-6 and is currently completing work on a series for elementary teachers entitled The Common Core Mathematics Companion.

Arjan Khalsa

Arjan Khalsa is former Board president of T2TGlobal. He has a 40-year career in education that includes teaching at the elementary and university levels, researching and developing K-8 products, starting an education nonprofit serving students in Latin America, and founding three educational publishing companies. He is a regular presenter at national and state-level mathematics education conferences where he often reports on his experiences in classrooms around the world. He has served as principal investigator on several federally funded research and development projects.

Leon Lamle

Leon Lamle is a full-stack web developer originally from New York City. He is the cofounder of CenturyClub, an on-premise analytics platform for the beverage industry, and fomerly worked at Compass real estate company. In the past he has worked on large payment systems, as well as a global learning management system that now trains over a million employees. When he’s not writing code, he loves to travel and work on side projects. One of his trips led him to Cozumel, Mexico, which he now calls home.

Chadd McGlone, PhD

Dr. Chadd McGlone is T2TGlobal’s cofounder and former executive director. Prior to launching T2TGlobal in 2014, he spent fifteen years in the classroom teaching mathematics and science to middle school students. He earned his bachelor’s degree in psychology from the Ohio State University and a doctorate from the University of North Carolina in Chapel Hill, specializing in math education and statistics. Dr. McGlone has served as the president of the North American Study Group in Ethnomathematics. He is happiest either traveling to a new country or exploring a new mountain bike trail.

Jenny McGlone, PhD

Dr. Jenny McGlone is T2TGlobal’s cofounder and current Board secretary who has a professional background in psychology. She worked in university counseling centers around the US, where teaching psychology was part of her job. From 2010 to 2014, she taught high school psychology at a local school. Dr. McGlone earned a bachelor’s degree in psychology from Davidson College, a master’s degree in psychology from Wake Forest University, and a doctorate in counseling psychology from the Ohio State University in Columbus, Ohio. She lives in Chapel Hill, North Carolina, with T2TGlobal's other cofounder, Chadd McGlone, in their newly empty nest.

Mary Ollila

Mary Ollila is a public school mathematics teacher in the Carrboro, North Carolina, area. She came to the education field after a career in fundraising. Originally from Ohio, she graduated from Miami University with a bachelor’s degree in systems analysis. She has served as development director for a children’s hospital, a medical foundation, and the United Way of both Los Angeles, California, and Columbus, Ohio. Her love for numbers and adolescents led her back to school to earn a middle school math certificate from the University of North Carolina at Chapel Hill. Ms. Ollila now teaches full time at Carrboro High School.

Tim Pope, MA

Tim is past president of the T2TGlobal Board of Directors and a returning mathematics educator. Previously, he was director of product management at McGraw-Hill. He has served as a high school teacher and administrator before leaving the classroom to work in curriculum design and professional development at the Charles A. Dana Center at the University of Texas at Austin. He has traveled on several T2TGlobal programs and led its first team to Kenya. Mr. Pope currently lives in Bogotá, Colombia, with his family.

Arthur B. Powell, PhD

Dr. Arthur B. Powell is a professor of mathematics education at Rutgers University-Newark in New Jersey. He is also codirector of the Robert B. Davis Institute for Learning of the Graduate School of Education, and directs the Research Group on Communication, Technology, and Mathematics Learning. His research interests include ethnomathematics, critically and socially responsive mathematics education, the subordination of mathematics teaching to learning, computer-supported collaborative learning, and proportional reasoning approaches to rational number knowledge. Before his travels began with T2TGlobal, Dr. Powell had taught in Brazil, China, Canada, Haiti, and Mozambique.

Michelle Pratico, MFA

Michelle Pratico is treasurer of T2TGlobal’s Board, having served as T2TGlobal’s executive vice president from 2017 to 2019. A native Midwesterner, she earned a bachelor’s degree in mathematics from Lake Forest College in Illinois, followed by a master of fine arts in computer graphics from the University of Illinois at Chicago. She has been awarded honorary membership in Associated Women in Mathematics. Ms. Practico’s career has focused on the operational side of various businesses, and her interests put her solidly at the forefront of the STEAM movement (Science, Technology, Engineering, Art, and Mathematics).

Steve Rasmussen

Steve Rasmussen is an education professional with a long track record in mathematics education and publishing. He was the co-founder and president of Key Curriculum Press (KCP), where he worked on software and textbook development. Mr. Rasmussen was also president of KCP Technologies, the developer of the Geometer’s Sketchpad software for dynamic geometry, and he worked with school and publishing organizations around the globe on technology initiatives related to mathematics education and inquiry-based learning. He has authored mathematics workbooks and served as principal investigator on numerous National Science Foundation projects.

Patrick Scott, EdD

Patrick (Rick) Scott is a retired mathematics educator who first started out as a Peace Corps volunteer in Jamaica. He has spent much of his career working with teachers in Latin America. He currently serves as vice president of the Inter-American Committee on Mathematics Education and the international representative for the National Council of Teachers of Mathematics. He is a past president of the US National Commission on Mathematics Instruction. Dr. Scott has published various works in both English and Spanish. He has traveled extensively on T2TGlobal programs in Central and South America.

Francisco Alarcón, PhD

Dr. Francisco Alarcón is a professor of mathematics at Indiana University of Pennsylvania. He grew up in Guatemala City and completed an undergraduate degree (Licenciado en Matemáticas) at the Universidad del Valle. He then moved to Iowa City, Iowa, and completed a PhD in mathematics at the University of Iowa. His teaching experience has included teaching mathematics and statistics at the high school, community college, and college (undergraduate and graduate) levels. Dr. Alarcón’s research interests are wide-ranging and include abstract algebra (commutative semiring theory), professional development of teachers, technology in mathematics instruction, and ethnomathematics (particularly mathematics of the Maya culture).

Jennifer Bay-Williams, PhD

Jennifer Bay-Williams is an energetic advocate for effective mathematics teaching, believing that every student deserves access to high-quality mathematics learning opportunities. As such, she has been an active author and presenter. Her recent books include Figuring out Fluency in Mathematics Teaching and Learning, K-8; Math Fact Fluency: 60+ Games and Assessment Tools to Support Learning and Retention; Teaching Student-Centered Mathematics (three-book series, third edition); On the Money [math and financial literacy book series published by the National Council of Teachers of Mathematics (NCTM)] and the iconic book Elementary and Middle School Mathematics: Teaching Developmentally. She is a popular presenter within the US and around the world, working in Jamaica, China, Peru, Kenya, and others. Dr. Bay-Williams is also a leader in national organizations, for example, serving as president of the Association of Mathematics Teacher Educators (AMTE); lead writer on the AMTE Standards for the Preparation of Teachers of Mathematics; on the NCTM Board of Directors and Board of Directors of TODOS: Mathematics for All. As a professor at the University of Louisville, Dr. Bay-Williams teaches undergraduate and graduate courses, while also working in schools in Louisville and throughout Kentucky.

Kyndall Brown, PhD

Kyndall Brown has over 30 years of experience in mathematics education. He was a secondary mathematics teacher in Los Angeles Unified School District (LAUSD) for 13 years. He has been a professional development provider for over 25 years, serving as a mathematics resource teacher for the Los Angeles Systemic Initiative in LAUSD, and as mathematics teacher consultant for and director of the University of California-Los Angeles Mathematics Project. Dr. Brown is currently the executive director of the California Mathematics Project, a statewide network of professional development organizations. His research focuses on the impact of culture and identity on the ways that African-American students learn mathematics.

Jere Confrey, PhD

Dr. Jere Confrey is the Joseph D. Moore Distinguished Professor of Mathematics Education Emerita at North Carolina State University (NCSU). She is currently designing interactive diagnostic assessment systems built on learning trajectories. In 2019, she completed an expert paper for the Organisation for Economic Co-operation and Development 2030 on learning trajectories in math. She developed the “Design and Pitch” entrepreneurial challenges in collaboration with colleagues and Jason Learning. She became an American Educational Research Association Fellow in 2017. Dr. Confrey is the CEO of The Math Door. She won NCSU’s Innovator of the Year award in 2013. She served on the National Validation Committee on the Common Core State Standards. She was vice chairman of the Mathematics Sciences Education Board, National Academy of Sciences (1998-2004). She chaired the National Research Council (NRC) committee that produced On Evaluating Curricular Effectiveness, and was a coauthor of the NRC’s Scientific Research in Education. She co-founded the UTEACH program at the University of Texas in Austin.

Hanna Haydar, PhD

Hanna Haydar is an associate professor and head of the childhood mathematics education program at the City University of New York-Brooklyn College, where he also teaches graduate mathematics education methods and research courses. Dr. Haydar serves as a doctoral faculty in the urban education program at the CUNY Graduate Center. He was previously the curriculum standards and professional development adviser at RAND Education and the Supreme Education Council in Doha, Qatar. His research interests and publications focus on beginning mathematics teachers, inclusion, lesson study, and teachers' use of the clinical interview. His international experience includes research studies and consultancies in the Middle East, Europe, and the US. Dr. Haydar served as a consultant to the Ministry of Education in Oman, United Arab Emirates, and schools in Jordan on curriculum standards development and mathematics education improvement projects.

Maria Hernandez, MS

With over 30 year of teaching experience, Maria Hernandez has developed curricula for high school students in various mathematics courses. She has led teacher collaborations via distance learning and has taught teacher workshops for courses from Algebra I to AP Calculus and Complex Systems. Her focus is using mathematical modeling, discovery-based activities, technology, and real-world problems to engage students as active learners in the mathematics classroom. She currently serves on the Joint Committee on Modeling Across the Curriculum, formed by the National Council of Teachers of Mathematics, the Society for Industrial and Applied Mathematics, and the Consortium for Mathematics and Its Applications.

Kristin Johnson, EdD

Kristin Johnson is an assistant superintendent of a preschool-8 school district in suburban Illinois. She works collaboratively with teachers, instructional coaches, and principals to strengthen curriculum, instruction, and assessment practices that foster student academic and social emotional learning. Her leadership has shifted mathematics instruction for those she serves through systematic strategic planning, student-centered coaching models, research-based pedagogy, and the development of educators to realize their potential in making math meaningful and understandable for every student. Dr. Johnson’s most recent favorite math memory is traveling to Nepal with T2TGlobal to teach students and coach teachers around impactful math practices.

Shelly M. Jones, PhD

Dr. Shelly M. Jones is a professor of mathematics education at Central Connecticut State University. She is a 28-year veteran educator having made her career in K-12 education as a teacher, professional development provider, and as a board member of several educational organizations. She is the author of Women Who Count: Honoring African American Women Mathematicians. Her accomplishments are recognized on the Mathematically Gifted & Black website.

Steve Leinwand

Steve Leinwand is a self-proclaimed mathematics education change agent. He is currently a principal researcher at the American Institutes for Research, where he contributes to a broad array of K-12 mathematics curriculum, instruction, school improvement, and assessment work. Mr. Leinwand previously served for 22 years as a mathematics supervisor in the Connecticut Department of Education and has been president of the National Council of Supervisors of Mathematics. His books, Accessible Mathematics and Sensible Mathematics, have been widely used to improve mathematics teaching and learning.

Susan Looney, EdD

Sue Looney is the founder of Looney Math Consulting and Same But Different Math, as well as the author of Ying and the Magic Turtle. She is passionate about making math joyful for all learners and is especially interested in early childhood mathematics. She has worked as a teacher, a district director, and as an adjunct professor of early childhood mathematics at Boston University. She is a nationally and internationally recognized speaker, and an avid proponent for equitable and powerful mathematics for all.

Margarita Martínez, MSIG, MBA, MSc

Margarita Martínez has taught in the mathematics department at Escuela Superior Politécnica del Litoral in Guayaquil, Ecuador, for nearly 40 years. She believes in the transformative power of quality education. She holds multiple graduate degrees in mathematics research, business administration, and management information systems. Reflecting with a group of teachers on the lack of critical and investigative spirit of high school students, she set out to create a motivating environment that inspires the curious minds of Ecuadorian children and young people. Ms. Martínez founded ¡Aja! Parque de la Ciencia in October 2005, the first interactive science center in Ecuador. Since 2006 she has coordinated the "seedbeds of future scientists and engineers," pursuing a true attitudinal change towards science and mathematics.

Kimberly Morrow-Leong, PhD

Dr. Kimberly Morrow-Leong is an author of the Mathematize It! series of books on problem-solving for K-8 teachers, an adjunct instructor at George Mason University, and a 2009 recipient of the Presidential Award for Excellence in Mathematics and Science Teaching. Dr. Morrow-Leong has worked as a consultant for Math Solutions, educator researcher at American Institutes for Research, and coordinator of elementary professional development at the National Council of Teachers of Mathematics. She also served as program chair for the National Council of Supervisors of Mathematics’ 50th annual conference and currently serves on the Association of Mathematics Teacher Educators’ Advocacy Committee. A former K-8 mathematics coach and middle school mathematics teacher, Dr. Morrow more recently accepted the challenge of teaching fifth grade remotely during the 2020-21 school year, which has sparked an interest in advocacy for teachers and alternative student assessments.

Arthur B. Powell, PhD

Dr. Arthur B. Powell is a professor of mathematics education at Rutgers University-Newark in New Jersey. He is also codirector of the Robert B. Davis Institute for Learning of the Graduate School of Education, and directs the Research Group on Communication, Technology, and Mathematics Learning. His research interests include ethnomathematics, critically and socially responsive mathematics education, the subordination of mathematics teaching to learning, computer-supported collaborative learning, and proportional reasoning approaches to rational number knowledge. Before his travels began with T2TGlobal, Dr. Powell had taught in Brazil, China, Canada, Haiti, and Mozambique.

Angel Ruiz, MS

Although his main interests have always been the philosophy and history of mathematics, in recent years, Angel Ruiz has focused on curricular reforms. Specifically, he leads the design and implementation of the national Costa Rican Mathematics Curriculum (grades 1-12), approved in 2012. Mr. Ruiz has been a strong presence in international organizations: four times president of the Inter-American Committee on Mathematics Education (ICME) (2007-2023), two times vice president of ICME (2009-2016), member of the Commission for Developing Countries of the International Mathematical Union (2010-2018), and director of the Mathematics Education Network for Central America and the Caribbean (2012-2021). Mr. Ruiz has published over 300 works, including more than 35 books.

Patrick Scott, EdD

Patrick (Rick) Scott is a retired mathematics educator who first started out as a Peace Corps volunteer in Jamaica. He has spent much of his career working with teachers in Latin America. He currently serves as vice president of the Inter-American Committee on Mathematics Education and the international representative for the National Council of Teachers of Mathematics. He is a past president of the US National Commission on Mathematics Instruction. Dr. Scott has published various works in both English and Spanish. He has traveled extensively on T2TGlobal programs in Central and South America.