Our Teachers

Learn about our talented group of teachers that lead the UB Summer Math Program.

Program Director

Ji-Won Son.

Ji-Won Son

Program Director, Summer Math Program
Associate Professor, Mathematics Education

Ji-Won Son joined the Department of Learning and Instruction as an assistant professor of mathematics education in August 2013. Prior to that, she spent five years as an assistant professor at the University of Tennessee at Knoxville. Son received her doctorate from Michigan State University in 2008 with an emphasis in mathematics education and taught elementary and middle school students in South Korea for four years.

Son's research centers on the intersection of mathematics education and curriculum and instruction.

Assistant Program Director

Jeri Diletti

Jeri Diletti.

Jeri Diletti earned her doctorate degree from the University at Buffalo in 2017. Her degree is in curriculum, instruction and the science of learning with an emphasis in mathematics education. Diletti's research interests include textbook analysis, curriculum alignment and teacher concerns in the enactment of curriculum. 

Diletti is currently an adjunct instructor and president of the math education student alumni group at the University at Buffalo. For over 12 years, she has worked at Akron High School in Akron, NY and currently teaches algebra and algebra 2. Diletti serves as the mentor coordinator and also serves on the professional development team.


Ryan Allen.

Ryan Allen

Ryan Allen is a graduate student at UB's Graduate School of Education. He is working toward his EdM in adolescent math education and plans to graduate in May 2020.

Allen participated as a TA in the Gifted Math Program at the University at Buffalo. His hobbies are playing sports, doing puzzles and working out.

Patti Doyle

Patti Doyle.

Patti Doyle holds a Bachelor of Science degree in accounting and mathematics from SUNY College at Brockport and a Master of Science in math education from Medaille College. She is New York State certified for math in grades 7 to 12. She was the 2013 NISOD (National Institute for Staff and Organizational Development) Excellence Award recipient for teaching excellence.

Doyle is currently a PhD student at the University at Buffalo majoring in curriculum, instruction and the science of learning with a math education concentration, and is also pursuing an advanced certificate in applied statistical analysis. She is an adjunct instructor at the University at Buffalo and the College at Brockport where she teaches all levels of mathematics. She is also an instructor for the Gifted Math Program at the University at Buffalo, a program that caters to area high school students.

Previously, Doyle taught math at Genesee Community College and Monroe Community College.

SeungJung Jo

SeungJung Jo.

SeungJung (SJ) Jo is currently a PhD candidate at the University at Buffalo majoring in early childhood mathematics education. She earned her master’s at SUNY Albany in teaching english to speakers of other languages (TESOL) in 2014.

Jo’s research interests include the ways young children learn math through informal activities such as cooking. Her dissertation is on how preschoolers learn mathematics through cooking activities.

Jo has been working as a research assistant for research projects such as international comparative study and elementary math textbook analysis. She is a teaching assistant in mathematics education at the University at Buffalo. She also taught at the UB early childhood research center as a classroom teacher for two years.

Vaishnavi Senthil Kumar

Vaishnavi Senthil Kumar.

Vaishnavi Senthil Kumar will be a freshman at the University at Buffalo’s Honors College in fall 2019, majoring in public health with a pre-health track. Vaishnavi is originally from Chennai, India.

Vaishnavi is deeply committed to improving the environment around her. She has helped tutor elementary and middle school kids in math and science subjects as a volunteer in her neighborhood. Her experience includes her role as team leader during the summer, teaching high school students about bioinformatics at the Hauptman Woodward Research Institute.

Vaishnavi enjoys doing artwork, yoga and playing badminton in her free time. She is thrilled about this opportunity and is looking forward to inspiring the young girls this summer at the summer math program.

Winston Martey

Winston Martey.

Winston Martey has been a mathematics instructor and department chair at Christian Central Academy in Williamsville, NY since September 2009.

Winston has a bachelor’s in mathematics education from the University of Cape Coast in Ghana and a master's in K-12 education from Capella University. He is a second-year PhD student in the curriculum, instruction and science of learning program with an emphasis in mathematics education at the University at Buffalo. He is currently working on history-infused mathematics instruction research, sponsored by a National Council of Teachers of Mathematics (NCTM) grant in collaboration with Associate Professor Ji-Won Son.

Winston presented at the NCTM national conference in April 2019 in San Diego and the New York State STEM Education Summer Institute at SUNY Alfred, and his conference presentations are the highlight of his career goals. His love for educational travel culminated in leading student tours to London, Paris, and Rome, and scheduled tours to Germany and Switzerland (2020) and Greece (2021). Winston’s philosophy on learning is pivoted around – perseverance through problem solving while training independent learners.

Christina McCarthy

Christina McCarthy.

Christina McCarthy is a graduate student at UB’s Graduate School of Education. She is working toward her EdM in adolescent math education and plans to graduate in May 2020. She also received her BA in mathematics with a minor in education from UB in December 2018.

McCarthy has worked as a long-term substitute teacher in an algebra 2 classroom and has helped tutor many of her peers, especially in her undergraduate years. Outside of school, McCarthy enjoys spending time with friends and family, watching movies and being outdoors. She is very excited to have the opportunity to be a part of the Summer Math Program.

Alexandria Porter

Alexandria Porter.

Alexandria Porter earned her EdM in adolescent math education from UB and she earned her BS in secondary mathematics education with a fifth to sixth grade extension and a minor in Spanish at Buffalo State College.

Porter currently works at Niagara Falls High School in the Niagara Falls City School District as an algebra and STEM teacher. At the high school, she runs a problem solving club where students solve various Rubik’s Cubes and puzzles. Additionally, she runs the ski club in the winter time. Other experiences include working as a TA at UB’s Gifted Math Program, teaching at the Huntington Learning center and volunteering in her community.

Porter is thrilled at the opportunity to get students excited about math, problem solving, and to explore various concepts through project-based learning.

Colleen Reidy

Alexandria Porter.

Colleen Reidy earned her master’s degree in adolescent math education from UB in May. Prior to becoming a teacher, she earned her BS in mechanical engineering from the University of Notre Dame (Go Irish!) and interned at four different engineering companies. Ms. Reidy has worked as a tutor at Sylvan Learning in Williamsville, and this year worked as a teaching assistant for the UB Gifted Math Program.

Reidy loves knitting, cardmaking/scrapbooking, Broadway musicals (especially Hamilton) and brain teasers. She is looking forward to a great summer getting to know everyone in the Summer Math Program.