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Faculty & Staff

Meet our Faculty 

 

 

Kristin Ashley, M.A.T. 
Lower School Teacher

Education: Miss Ashley received both her Bachelor of Arts Degree and Master of Arts in  Teaching from Trinity University.

Experience: Ms. Ashley teaches a D Core class in our Lower School. Ms. Ashley also  sponsors our EarlyAct Club.

 

 


Chris Borth, M.Ed. 
Athletic Director, Coach

Email: syocham@winston-sa.org

Education: Mr. Borth earned his Bachelor of Science in Secondary Education with an  emphasis in Kinesiology from Texas State University and his Master of Education with an  emphasis in Science Curriculum and Instruction from Concordia University.

Experience: Mr.  Borth taught Math and Science at Winston for six years before taking the position of  Athletic Director. Prior to coming to Winston, he worked as a teacher and coach for the  Northside Independent School District, Lytle Independent School District, and St. James  Catholic School. Coach Borth has nearly over 15 years of experience as a teacher and athletic coach.


Mike Canales, M.A.
Upper School Advisor, Interact Sponsor

Email: mcanales@winston-sa.org

Education: Mr. Canales received a Bachelor of Arts Degree from the University of Maryland and a Master of Arts Degree in Management from Webster University. His Texas Teaching Certificate is in the area of Special Education.

Experience: Mr. Canales has taught Spanish I, II, and III at Winston since 2004. Prior to coming to Winston, he worked for 10 years as a special education teacher in one of San Antonio’s largest public school districts.


Giovanni Cavatorta, M.B.A., M.S.
Upper School Advisor - Math Department Head

Email: gcavatorta@winston-sa.org

Education: Mr. Cavatorta received his Master of Science Degree in Computer Information Systems and a Master of Business Administration from St. Mary’s University.

Experience: Mr. Cavatorta has been at Winston since 2006 and teaches Upper School Math and Upper School Computer Programming.

 


Kali Dawson, M.A.T.
Lower School Teacher
 
 
Education: Miss Dawson earned a Bachelor of Arts in Communications from Trinity University and a Master of Arts in Teaching EC-6 also from Trinity University with specialization in Special Education and ESL.

Experience: Miss Dawson teaches B core classes in our lower school. Prior to coming to Winston, she taught in both a traditional public school and a public charter school in San Antonio.  
 

Sabrina Gomez, B.A.
Lower School Teacher
 
 
Education: Sabrina Gomez has a Bachelor of Arts degree in Interdisciplinary Studies from University of Texas Rio Grande Valley.
 
Experience: Sabrina Gomez comes to us from Primrose Private School here in San Antonio where she has been the lead teacher in a preschool class. Ms. Gomez will be working in A-B CORE alongside Ms. Kristin Ashley as we welcome new Kindergarten and First Grade students.
 

Tricia Hernandez, M.Ed.
Upper School Advisor

Email: thernandez@winston-sa.org

Education: Mrs. Hernandez received her Bachelor of Science Degree in Health with an emphasis in Business and Industry from The University of Texas at San Antonio and her Master of Education in Exercise Science from Texas State University.

Experience: Mrs. Hernandez teaches Upper School Health and Speech classes. She also teaches Physical Education for the entire school. Prior to coming to Winston, she served as the head of the Physical Education Department at The Briarwood School, and was highly involved with the school’s Special Olympics program. Mrs. Hernandez also taught and coached in the Pleasanton Independent School District.


Jackie Jaramillo, M.A.
Lower School Teacher

Email: jjaramillo@winston-sa.org

Education: Ms. Jaramillo received her Bachelor of Science Degree in Early Childhood Special Education with a minor in Guidance and Counseling from Southwest Texas State University and a Master of Education from Framingham College.

Experience: Ms. Jaramillo teaches Math, Reading, and Language Arts to our Lower School students, as well as Sixth Grade Social Studies. Ms. Jaramillo began her teaching career as one of Winston’s charter faculty members in 1985. In 1997, she took a sabbatical to work at the American School Foundation Monterrey and returned to Winston in 1999. Ms. Jaramillo has served as a School Attuned Certified Teacher and has specialized training in Alphabetic Phonics and the Landmark Writing Program.


Mohammed Khalid, B.S., A.A.
Middle School Advisor - Math Teacher

Email: mkhalid@winston-sa.org

Education: Mr. Khalid received his Bachelor of Science Degree in Mathematics from the University of Texas at San Antonio.

Experience: Mr. Khalid teaches Middle and Upper School Math.  Prior to coming to Winston, he worked at San Antonio College as a math tutor.  He also worked with the U.S. Army as a linguist.  Mr. Khalid is trilingual (Arabic, English, and Kurdish). 


Kristal Kelley, B.A.
Lower School Teacher

Email: kkelley@winston-sa.org

Education: Ms. Kelley received her Bachelor of Fine Arts degree in Elementary Education and Early Childhood Education from The University of Texas San Antonio.

Experience: Ms.Kelley began her teaching career in San Antonio in North East Independent School District. She was with the district for 8 years. She began subbing and teaching at The Winston School San Antonio Summer Program in 2016. She joined the lower school team in 2020.


Amanda King B.S.
Lower School Teacher

Email: aking@winston-sa.org

Education: Ms. King received her Bachelor of Science degree from Texas A&M University.

Experience: Ms.King began her teaching career in 2001 and has worked in Northeast ISD teaching K-5th grades. She joined the lower school team in 2021.


Brenda Lane, M.Ed.
Middle School Advisor

Email: blane@winston-sa.org

Education: Mrs. Lane received her Associate’s Degree in Early Childhood Development from the University of South Florida; a Bachelor of Science Degree (cum laude) in Interdisciplinary Studies from Southwest Texas State University; and a Master of Education specializing in Administration from Concordia Lutheran University.

Experience: Mrs. Lane teaches Middle School Social Studies. Prior to coming to Winston in 2000, Mrs. Lane taught in other private schools and served in the administration realm for more than 10 years.


Stacie Lewis, B.A.
Upper School Advisor

Email: slewis@winston-sa.org

Education: Mrs. Lewis received her Bachelor of Arts Degree in Interdisciplinary Studies from The University of Texas at San Antonio. She is certified to teach ELA, ESL, and art.

Experience: Mrs. Lewis teaches Middle and Upper School Art. She has taught since 1998, and joined Winston after an extensive career in the Northside Independent School District. She is a lifelong artist with a passion for the visual arts and the English language.


Michelle McCay, B.A.
Upper School Advisor - English Department Head

Email: mmccay@winston-sa.org

Education: Mrs. McCay received her Bachelor of Arts Degree in English from The University of Texas at San Antonio.

Experience: Mrs. McCay teaches English Language Arts to our Upper School students, serves as the faculty sponsor for Winston’s Student Council, and coaches volleyball. Prior to coming to Winston, she worked as an 11th grade English teacher, and coached high school soccer and volleyball.


Jesse Mendez, B.S.
Middle School Advisor

Email: jmendez@winston-sa.org

Education: Mr. Mendez received his Bachelor of Science Degree in Engineering from Texas A&M University in College Station. 

Experience: Mr. Mendez teaches Upper School Math and Business, Middle School Science and Lower School Computer Lab. He is a San Antonio native and a retired Marine Major with over 20 years of experience in Logistics, Operations, Planning, and Recruiting.


Cornelio Ontiveros, B.A.S.
Workshop Teacher

Email: contiveros@winston-sa.org

Education: Mr. Ontiveros received his Bachelor of Applied Science from Texas A&M University-Kingsville. Additionally, he is a Welding Engineer, and is certified in mechanics and fabrication welding, multiple process shielded metal arc welding, gas metal arc welding, and gas tungsten arc welding. He holds A36 mild steel, multi stainless steel and aluminum base welding certifications, as per American Welding Society AWS D1.1 code book and API 1104 Pipeline codebook. Retired Military D.A.V.

Experience: Mr. Ontiveros has been an Instructor, Designer, Fabricator and Certified Welder for more than 15 years, and has been an AWS Trainer for more than 11 years at Alamo Colleges.  He also has experience as an AWS Inspector.


Linda Osborne, M.S.
Lower School Teacher

Email: losborne@winston-sa.org

Education: Mrs. Osborne received her Bachelor of Science Degree in Elementary Education from The University of Texas at El Paso and her Masters of Arts Degree in Elementary Education from Wayland Baptist University.

Experience: Mrs. Osborne began her teaching career in El Paso. She worked several years at Judson ISD before becoming a math specialist for Northside ISD, where she worked for 15 years. For Mrs. Osborne, five summers as a teacher in the WSSA Summer School Program resulted in a love for The Winston School San Antonio, and all that it represents. She joined our team as a Lower School teacher in 2018.


Franklyn Pacheco, M.S.
Upper School Science Teacher

Email: fpacheco@winston-sa.org

Education: Mr. Pacheco received his Bachelor of Science in Mathematics from the University of Texas-Pan American (now called University of Texas - Rio Grande Valley) in December 2010. He went on to pursue a Master of Science in Chemical Engineering from the University of Houston and graduated in December 2013.

Experience: Mr. Pacheco teaches Upper School mathematics and science. Prior to Winston, he taught science (mostly physics) and math for 5 years with Houston ISD. He enjoys helping students prepare for academic competitions and hopes to start a math group at Winston. Mr. Pacheco also enjoys playing guitar and teaching martial arts.


Marina Parra-Noonan, M.S.
Upper School Advisor

Email: mnoonan@winston-sa.org

Education: Mrs. Parra-Noonan received her Bachelor of Science Degree in Environmental Science from New Mexico State University and a Master of Science in Geology from The University of Texas at San Antonio.

Experience: Mrs. Parra-Noonan teaches Middle School Science and Upper School Sciences. Prior to coming to Winston in 2014, she taught Environmental Science, Physics, and Biology at Holy Cross of San Antonio, and she taught Middle School in the public school sector.


Donna Pearson
Upper School Teacher
 

Education:  Mrs. Pearson earned a Bachelor of Arts in Political Science and English from the University of Louisiana.  Additionally, she received her Master's Degree (and teacher's certification) in Social Studies Education from Louisiana State University.  

Experience:  Mrs. Pearson teaches US History, assists in the library, and is Winston's building substitute teacher.  She taught for almost twenty years in the public school arena in Louisiana, Kansas, and Texas, teaching all subjects within the Social Studies discipline.  Mrs. Pearson enjoys walking, gardening, reading, and spending time with her family.


Monica Ramirez-Escamilla, M.Ed.
Middle School Teacher
 
 
Education: Mrs. Ramirez-Escamilla earned a Bachelor of Arts degree in English from St. Mary's University and a Master's Degree in education at UTSA.
 
Experience: Mrs. Ramirez-Escamilla has taught elementary, middle school, and high school for 18 years. Her certifications include: EC-6 Generalist, 8-12 ELAR, Principal, GT, Science in Reading and ESL.
 
 

Nancy Ribak Altadonna, M.S. Ed.
Upper School Advisor and Social Studies Teacher

Email: nribak-altadonna@winston-sa.org

Education: Ms. Ribak Altadonna received her Bachelor of Science in Radio-TV-Film with a minor in history from The University of Texas at Austin. She earned a Master of Science in Education from Long Island University in Brooklyn, NY. Currently, she is working on a Ph.D. in Education with a specialization in Learning, Instruction, and Innovation at Walden University.

 

Lana Riley, M.S.
Lower School Teacher
 
 
Education: Mrs. Lana Riley holds a Masters of Science degree in Curriculum and Instruction from Texas A&M at Corpus Christi.
 
Experience: Mrs. Riley has a wealth of knowledge and experience having taught multiple ages and subjects in various schools and districts, including special education and students who have dyslexia. Most recently, she worked in Comal ISD and was responsible for all aspects of the campus dyslexia program including instruction, testing, and assuring accommodations were followed in the classroom. Mrs. Riley will be working alongside Mrs. King and Ms. Dawson in B CORE as we welcome new 3rd and 4th grade students.  

Richard Rodriguez, B.A.
Upper School Advisor

Email: rrodriguez@winston-sa.org

Education: Mr. Rodriguez received his Bachelor of Arts in Journalism from The University of Texas at Austin.

Experience: Mr. Rodriguez teaches Digital Media I and II, and Graphic Design/Yearbook in our Upper School. Mr. Rodriguez comes to Winston from having served as the President and CEO of Digital Edge, a communications and video production company with clients such as Motorola USA, Cisco Systems, Frost Bank, etc. Mr. Rodriguez also spent time in television sports with both KSAT and KENS.


Deanna Strahl, B.S.
Upper School Advisor

Email: dstrahl@winston-sa.org

Education: Mrs. Strahl received her Bachelor of Science Degree in Elementary Education from Greenville College in Greenville, Illinois.

Experience: Mrs. Strahl teaches Middle and Upper School English and Math. She has over 30 years of teaching experience, including 1-8th grade and K-12 special education. She came to Winston after spending 25 years in the North East Independent School District.


Kimberly Sultemeier, M.A.
Lower School Teacher

Email: ksultemeier@winston-sa.org

Education: Ms. Sultemeier received her Bachelor of Science Degree in Experimental Psychology at The University of the Incarnate Word and attended graduate school at the School of Psychology at Trinity University.

Experience: Ms. Sultemeier is a D-Core Lower School teacher. She teaches Math, Reading, Language, and Science. Before Winston, she taught 5-8 grade Math and Science at St. Thomas More Catholic School. She also taught ESL Biology/Chemistry at Roosevelt HS. She began her teaching career at Fort Sam Houston ISD.


Cynthia Valdez, B.A.
Middle School Teacher

Email: cvaldez@winston-sa.org

Education: Ms. Valdez received her Bachelor Degree in Psychology from the University of Texas at San Antonio and a Teaching Degree/Special Education Certification from Texas A&M International University.

Experience: Prior to coming to Winston she had 23 years classroom experience as a Special Education teacher and she currently works as a migrant tutor for Region 20.

 


Patrick Villalpando, B.A.
Music and Drama Teacher

Email: pvillalpando@winston-sa.org

Education: Mr. Villalpando Patrick attended Our Lady of the Lake University where he received a Bachelor's in Music with a concentration in Composition. While in school, Mr.Villalpando participated in both Our Lady of the Lake's Jazz Band and Choir. Outside of class, he also played bass guitar for a few local Jazz and cover bands.

Experience: After graduating from OLLU, he went on to teach music lessons (voice, guitar, bass, piano, drum kit) out of a studio and a few charter schools. Along with that, he followed his love for cultural performing arts to become a technical and production assistant at the historic Guadalupe Theater (Guadalupe Cultural Arts Center). 


Meet Our Staff

Charles Acord
Director of Maintenance

Email: cacord@winston-sa.org

What one word describes Winston? Dedicated.

What do you love most about Winston? I love that each Winston student has the opportunity to grow.

Mr. Acord has been the Director of Maintenance at Winston since 2002. Prior to joining us at Winston, he worked in construction and also owned his own auto repair shop. He holds many certifications, including Ford-trained Service Technician, OSHA, Universal Technician, MVAC Technician, WebCTRL®, Spectra-Physics Laserplane operator, and many others.


Bianca Flores
Executive Assistant/Registrar

What one word describes Winston? Inclusive.

What do you love most about Winston? I love Winston because of the diverse group of kids we have here, along with the support and passion our teachers have for all of our students.

Mrs. Flores joined Winston in 2015. She has extensive experience in event planning and management. Mrs. Flores provides administrative assistance to our headmaster. She is also responsible for managing the student's records as our Registrar.


Missy Harris, B.S.N., R.N.
School Nurse

Email: mharris@winston-sa.org

What one word describes Winston? Welcoming.

What do you love most about Winston? At Winston, you don't feel like a number, you feel like a family member.

Mrs. Harris joined Winston in 2018 after gaining experience in an educational setting at AHISD and NEISD. In her spare time, Mrs. Harris enjoys watching her daughters playing sports.


William Lee
Maintenance Assistant

What one word describes Winston? Welcoming.

What do you love most about Winston? I love the warm welcome for staff and students alike.

Mr. Lee joined the Winston maintenance team in 2020. Along with Mr. Acord and Mr. Leija, William keeps our school in beautiful condition.

 


Mario Leija
Maintenance Assistant

What one word describes Winston? Amicable.

What do you love most about Winston? I love the warm welcome for staff and students alike.

Mr. Leija joined the Winston maintenance team in 2020. Along with Mr. Acord and Mr. Lee, he keeps our school in beautiful condition.

 


Ana Lopez
Assistant Business Manager

Email: alopez@winston-sa.org

What one word describes Winston? Extraordinary.

What do you love most about Winston? I love the people at Winston. It's a great environment to be in.

Mrs. Lopez works in Winston’s Business Office processing accounts payable and receivable. Prior to coming to Winston, she had 23 years of experience as the Director of Finance of a local catering company.


Juan Bosco Morales, B.A.
Director of Information Technology

What one word describes Winston? Life-changing.

What do you love most about Winston? I love that my son and his classmates have increased confidence, academics, and a dramatically improved life outlook after being a part of Winston.

Education: Bachelor of Arts in Communications with a major in Radio, Television, and Film from the Universidad Regiomontana.

Mr. Morales began his position as Director of Communications for Winston in 2012. Prior to that, he served as owner and VP of Operations for Digital Edge, a communications and video production company.


Kassandra Ponce, B.F.A.
Marketing & Communications

What one word describes Winston? Amiable.

What do you love most about Winston? Winston kids are spectacular and the school is gutted with faculty and staff that are truly here to make an impact in students' lives.  It feels amazing to be a part of this community!

Education: Ms. Ponce received her education from Angelo State University in San Angelo, Texas, where she studied Graphic Design and Studio Art.
Ms. Ponce began her career at Winston in 2022. She has experience in Graphic Design, Digital Media and is a published illustrator. Her passions are her dogs, art, and love!


Toni Schexnyder, M.Ed.
College and Career Coordinator

What one word describes Winston? Unique.

What do you love most about Winston? Everyone at Winston is different, which makes everyone fit in! Winston is a family and we support each other every step of the way.

Education: Bachelor of Arts Degree in English and Theatre; Master of Education in Secondary Education from Texas State University.

Mrs. Schexnyder joined Winston in June of 2016. Previously, she served as an Undergraduate Admissions Counselor at Texas State University. She currently serves on the Executive Board of the Texas Association for College Admission Counseling (TACAC) and serves as a Co-Chair of the TACAC Government Relations Committee. She is also the faculty sponsor for the WSSA Dungeons and Dragons Club and the Winston chapters of the National Beta Club and National Honor Society.


Cierra Sotelo, M.S.
Guidance Counselor
 
What one word describes Winston? Responsive
 
What do you love most about Winston? There is a genuine sense of inclusion here. Faculty and staff go above and beyond to help every student be successful in all that they do.
 
Education: Cierra Sotelo received her Bachelor of Arts degree in Psychology from the University of Incarnate Word and a Master of Science degree in Psychology (Marriage & Family Therapy) from Our Lady of the Lake University.  Mrs. Garza Sotelo is currently working towards receiving her certification as a licensed Marriage & Family Therapist (MFT) and a Licensed Professional Counselor (LPC).