The Number Street Math Academy instructors believe in the abilities of every child and that every child is capable of rigorous problem solving and critical thinking.

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Jenny Tsankova


Dr. Jenny K. Tsankova is an associate professor of Mathematics Education at Roger Williams University in Bristol RI, and teaches the mathematics methods courses for elementary and secondary preservice teachers. 

Dr. Tsankova is a Director of Master’s Program in Mathematics Education, author, conference state and national speaker, and serves on the boards of state and national organizations.  She models lessons, consults, and provides inservice training for teachers in various school systems in Massachusetts. 

Dr. Tsankova strongly believes that all children can learn mathematics deeply and at the same time enjoy wrestling with challenging problems.

Rebecca Brady


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Becca has a master’s degree in Curriculum and Teaching Math from Fitchburg State University. She has been teaching at Plymouth North

High School for five years and has been teaching at Number Street for three years.

In the summer Becca also teaches math courses at the Mostar Summer Youth Programme in Bosnia.

She attends math educator’s conferences and takes courses so she is always learning about new and innovative ways to teach. She enjoys sharing her excitement and love for math with our students.

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Desi Stakeva


Desi Stakeva has a Master’s of Science Degree in Mathematics Education from Simmons College. She is currently an 8th grade Math teacher at New Heights Charter School in Brockton.

She strongly believes that all children can learn mathematics deeply and at the same time enjoy wrestling with challenging problems.

Desi Stakeva is a regular participant in mathematics education conferences and cutting edge professional development. She brings knowledge and experience of Singapore Math and best practices.

Jen Daly


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Jen Daly has three children who attend Number Street Math Academy and has been a parent volunteer for five years at Number Street.

In 2016, Jen started co-teaching classes alongside Dr. Tsankova and found her new passion - teaching k-5 students. Currently, to stay current on her understanding of the teaching curriculum that is practiced at Number Street Math, Jen is taking graduate classes in Mathematics Education. She substitutes regularly in Easton Public Schools.

Jen has an MBA and is an active member of Easton’s school system. She has helped to spear, support, and teach enrichment programs at the elementary schools and has had varies roles on the boards of the schools PTAs. She enjoys her time making a difference in the lives of our students!

Viktor Tsankov


Mr. Tsankov is our mathematician extraordinaire. He teachers our Calculus courses and prepares our students for the SAT exams.

​Mr. Tsankov has had an extensive experience in teaching high school and adult college CAGS classes.

Our students enjoy his teaching style and personality.


Kendra Haggerty


Ms. Haggerty is K-5 Math Coach at Kennedy Elementary School in Providence RI. She is a dynamic, enthusiastic and experienced teacher we all treasure!

We love Ms. Haggerty!


Jenny Stakeva


Miss Jenny has supported Number Street Math for the past seven years. She co-taught and substitute-taught at the academy while still attending Oliver Ames High School. She completed her undergraduate degree at UMass Amherst majoring in Mathematics and Secondary Education. She is enrolled in a Master's in Mathematics Education program at Teachers College, Columbia University. Jenny offers an upbeat, positive personality that our students look forward to!