The staff here at The Principled Academy is dedicated to providing a nurturing, structured, and safe environment, centered on Core Knowledge and Core Virtues. Our staff’s main focus is character education, academic excellence, and partnership of home, school and community. 

The Principled Academy Staff listed in alphabetical order:


Alycia Adams

Alycia Adams is the third grade math and reading teacher. She works in partnership with Margo Barker to create an exciting curriculum for the third grade.  She is also the afternoon teacher for the Kindergarten. She has a Associate of Arts degree in General Curriculum and twenty-four Early Childhood Development Credits. She has served on The Principled Academy staff since 1994.



Nancy Asmundson (

Nancy Asmundson serves as Admissions and Records Manager. She holds a B.S. in Liberal Studies from Excelsior College, Albany, New York. She has served on The Principled Academy staff since 2004.




Liisa Burns

Liisa Burns teaches Physical Education for the Kindergarten through fourth grade. She teaches middle school math and geography to the fifth/sixth grade class.  Mrs. Burns has served on The Principled Academy staff since 1993.


Micaela Diaz

Micaela Diaz is the head teacher for 7th and 8th grades.  She teaches science and Algebra to 7th and 8th grade students.  She oversees the computer classes and teaches science to the 5th and 6th grade class.  She leads an afterschool Spanish club on Tuesdays and a Video Making Club on Thursdays.  She has a B.A. from U.C. Berkeley and a Teaching Credential and a M.A. from Holy Names University.


Mose Durst, Chairman of the Board

Mose Durst, Ph.D., is Chairman of The Principled Academy Board and teaches literature and history to 7th and 8th grade students. After completing his Master’s and Doctor’s degrees in English Literature from the University of Oregon, Dr. Durst has published seven books including Principled Education, Shakespeare’s Plays, and Oakland, California: Towards A Sustainable City, and two children’s books.

Please read The Crisis in our Schools and Principled Character Education both published by Dr. Durst, outlining our basic concepts of education.

“My job is teaching Middle School students, which I think is so important. The time I have been given with students is the period of life when their characters are changing the most. I can make a great influence on the lives of young people. Of all the things I could do, helping young people understand what is valuable and how to become valuable is the most important to me. Thus, teaching gives me a great deal of joy, and I hope I too can offer not only joy but understanding in reading, writing, and history.”


Angelica Espinoza, Teacher’s Assistant

Angelica Espinoza works in Preschool and Aftercare at The Principled Academy.  She has worked at the school since 2010.



Meiling Feng

Meiling Feng Savva is an aide in Preschool.  She has worked at the school since 2012.




 Yoshiko Floyd

Yoshiko Floyd is an assistant teacher in the Preschool. Mrs. Floyd has worked at the Principled Academy for a few years.



Regina Freeman

Regina Freeman teaches in our preschool. She has a B.A. from Concordia university in Portland, Oregon and an A.A. in Early Childhood Development for Chabot college. She has been working with child children for 17 years.

“My favorite hobby is reading. I love to share a good book with children and watch their eyes shine with anticipation when I become ‘suspenseful’ and hear ‘Turn the page!’ My desire is that they will develop a love for reading as well.”


Teresa Holstein 

Mrs. Holstein is the Lead Teacher for First Grade. She holds a B.A. in Human Development from California State University, East Bay (CSUEB) and a Multiple Subject Teaching Credential from John F. Kennedy University. Mrs. Holstein has over 20 years of teaching experience. Mrs. Holstein began teaching at The Principled Academy in 2007.


Brenna Iredale (

Brenna Iredale is the Principal and the Lead Teacher for the combination 5th/6th grade class. She holds an Associate degree in Ecology from Paul Smith’s College, a Bachelor’s degree in Liberal Arts with a minor in Biological Science from California State University, East Bay (CSUEB), and a California K-12 Multiple Subject Teaching Credential with supplementary authorization in Science from CSUEB. She studied Early Childhood Education at Pacific Oaks and Chabot Colleges. Mrs. Iredale has experience teaching and working with children of all ages, but her recent experience has been with the middle school students.  She took on the position of Principal when Kristina Seher moved onto work with development.  Mrs. Iredale’s goal is to suport all the teachers to nourish the hearts and minds of their students.  She has worked with The Principled Academy since January, 1991.



Raquel Ivanenko

Raquel Ivanenko is the Lead Teacher for the 4th grade class. She holds a B.A. in Ethnic Studies from California State University, East Bay (CSUEB) and a multiple subject teaching credential from the same institution. Mrs. Ivanenko has been on The Principled Academy staff since 2005.



Jivco Jetchev

Jivco Jetchev teaches Physical Education to 5th through 8th grades.  He also holds a Gymnastics Club for Preschool, Kindergarten and 1st-4th students.  Mr. Jetchev is also the owner of Sparta Gymnastics in Hayward.



Myrna Lapres (

Myrna Lapres is the Lead Teacher for the Kindergarten class as well as holding administrative responsibilities that include organizing school events such as the annual Scholastic Book Fair and the Family Heritage Night and overseeing the school yearbook.  She holds a Bachelor’s degree from the State University of New York, New Paltz, and a Master’s in Religious Education from the Unification Theological Seminary in Barrytown, New York. Mrs. Lapres studied Early Childhood Education at Chabot College and Pacific Oaks Extension College.  She has served on The Principled Academy staff since 1993.

“One of my main goals in kindergarten is to provide an environment where the students are engaged and excited about learning.  This past summer, I participated in a Forestry Institute for Teachers and I am looking forward to implementing many of the ideas with my students-adopting a tree and observing it through the seasons, measuring the height of the tree with a helium balloon on a string (how many unifix cubes long is it?) and learning about the animals that make their homes in a tree.”



Margareta Mori

Margareta Mori assistant teaches in the Kindergarten. Mrs. Mori has a Diploma in Pediatric Nursing from Central Children’s Hospital in Bremen, Germany. She has worked in Pediatric Intensive Care at the Johann Wolfgang Goethe University Hospital in Frankfurt, Germany. Mrs. Mori has received a Certificate in Careers with Children from the Regional Occupational Program in Cerritos, CA. She completed a Teacher Aide Program with Harcourt Learning Direct/Education Direct in Scranton, PA. In addition, Mrs. Mori has completed 18 units in Early Childhood Education from Chabot Community College. Mrs. Mori has taught at the Principled Academy Preschool since 2002.


Jamie Park

Ms. Park is a teacher of 5th/6th grades as well as 1st – 4th grades Art.



Poppy Richie

Poppy Richie is the Lead Second Grade teacher.  She holds a Bachelor’s degree from St. Lawrence University in Canton, New York. She completed her training in Early Childhood Education at the University of California, Berkeley Extension College and at Chabot College. She has served on The Principled Academy staff since 1992. She is a contributing author to a published Character Education curriculum series Discovering the Real Me.



Kristina Seher,  Head of School

Kristina Seher is the Head of School. She has a Bachelor’s degree in psychology from the University of Michigan, Ann Arbor, and holds Master’s degrees in Developmental Psychology and in Educational Administration from the University of California at Berkeley. In addition, Mrs. Seher holds a California K – 12th Multiple Subject Teaching Credential from the University of California, Berkeley, and an early childhood education Program Director Credential.  Mrs. Seher has been with the school since its inception.



Ann Steinbronn

Ann Steinbronn is the Preschool Director, teaches science to 1st & 2nd grades, and teaches art to 5th -8th grades. She holds an Associate of Arts degree in Early Childhood Education from Chabot College. She has completed the Every Director Counts program. Mrs. Steinbronn has taught at The Principled Academy since 1994.






Emiko Tamura

Emiko Tamura is our Accounting Manager.  She is available on Mondays and Thursdays to assist parents with their payment needs.



Younghi Townsend

Younghi Townsend is an Aide in the Preschool and in Aftercare.



Kimie Watanabe

Kimie Watanabe is a Teacher Assistant in the Preschool. Mrs. Watanabe has worked at the Principled Academy since 2005.

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