About Us


To provide IB - MYP mathematics teachers the resources they need to effectively and efficiently assess the performance and potential of their students.

History and The Founders

The EdVaults was started by two MYP mathematics teachers who taught in Shanghai, China together. Through their experience with software task banks, textbooks, and MYP workshops, Mike and Denes realized that not only was creating quality assessments using the MYP criteria very difficult for teachers to do, but that there was a severe lack of resources and guidance available to help them in that process. As a result Mike and Denes started The EdVaults, a one-stop shop for MYP mathematics assessment needs for teachers.

Mike Tarnow


Denes Tilistyak


Mike is a former MYP and DP mathematics teacher who previously taught in several international schools in China. He holds a B.S. in Inclusive Education with a minor in Mathematics from Syracuse University and an M.A. in Instructional Technology and Media from Columbia University. Mike was previously an educator at the National Museum of Mathematics in New York City and is currently a learning design consultant for STEM programs at Columbia University’s Center for Teaching and Learning.


Denes has been teaching MYP and DP mathematics for nearly 20 years. He is a DP Mathematics AA HL examiner, former DP Coordinator, and founder of HighFour Competitions. After earning his B.A. in Mathematics and English Language and Literature, he started teaching at public schools in the USA. He then moved on to teach in international schools, first in the Philippines, then in China (where he also earned his M.Ed.), in Côte d'Ivoire, and then now in Sudan, where he is part of developing MYP at his school. Denes has contributed to several publications by Haese Mathematics, including a soon-to-be published assessment book series.


Archit Atray


Diellza Jakupi


Assessment Author


Assessment Author

Archit has been working as an IB MYP and DP mathematics teacher since 2017 and has previously taught in India and Sudan, and now in Japan. He has a B.Tech degree in Metallurgical Engineering and, after a short stint in the steel industry, he pursued his passion by completing a B.Ed degree. 


Diellza has been teaching IB MYP and DP mathematics for 3 years at an International School in Kosovo. She holds a B.Sc in Financial Mathematics from The University of Prishtina and completed an additional semester in Math Education at St. Olaf College. She is currently pursuing an MBA at the University of York and an M.Ed in Advanced Teaching at the University of the People.