Meet the Staff

Lydia Berry 

Secondary Science 

Lydia Berry graduated from Trinity High School in Euless, Texas.  She earned a Bachelor of Science degree in Biochemistry from Texas A&M University, and a Masters in Business Administration from Texas A&M University.  Lydia is certified to teach high school Chemistry, Biology, and Math.  She has taught Honors Chemistry and Advanced Placement Chemistry for thirteen years at Martin High School, and has been a teacher in AISD’s prestigious STEM Academy for the past five years.  Her life’s purpose is helping young adults achieve their college and career goals.  She takes joy in seeing her former students become successful dentists, doctors, engineers, and achieving their future aspirations.

Lydia lives in Arlington with her husband, Patrick.  She has two children, Cade, who works as a mechanical engineer and Katie, a recent graduate of Rice University.  She enjoys walking, hiking and the mountains.  Lydia would love the opportunity to help your student achieve their educational goals and dreams.

Sally Cagle

Elementary & Secondary English 

Special Education

Sally Cagle graduated from Texas A&M University with a BA in Speech Communications.  She has been teaching English Language Arts for ten years.  Sally is certified in ELA 4th-12thgrades, Education Generalist 4th-8th grades, English As A Second Language, and Special Education.  Sally enjoys working with students to improve their reading and writing skills, study skills, as well as building test taking confidence. 

Sally was born and raised in Arlington.  She enjoys family life with her husband, Brady, and their two children, Scout, age six, and Ranger, age three. You can find them on the soccer fields, riding bikes along Arlington’s biking paths, or camping on the weekends.  Sally loves to laugh and strives to create an environment for learners that is positive, creative, and fun.

Rhonda Dunn

Secondary English

Advanced Placement

Rhonda Dunn received her Bachelor of Science in Education from the University of Nebraska.  She has been teaching English for the past twenty-four years.  Her classroom experience includes: English I, English II, English III, English IV, Pre-AP English II, AP Literature and Composition.  She has a special emphasis in Writing.  Rhonda currently teaches AP Literature and Composition to seniors, and has experience teaching ESL students in a regular, as well as advanced classroom setting.  Rhonda is trained and practiced in teaching close reading and analytical writing strategies.  She especially enjoys helping seniors craft and shape essays for college applications and scholarships.

Rhonda lives in Arlington with her husband, Patrick, who is also a teacher and coach, and her four children.  Rhonda coaches volleyball and soccer, and loves coaching children of any age and skill level.  Her Saturdays are spent on one of Arlington’s athletic fields, and her Sundays are spent at Lake Church where she volunteers in the Children’s Ministry as a teacher in KidsRock, and as a drama leader in Cross Trainers.

Pam Elliott

Reading/ General Elementary Ed

Pam Elliott grew up in Arlington, Texas, and attended Arlington schools.  She is a hometown girl and knew she wanted to be an educator in Arlington.  Pam attended Texas A&M – Commerce, receiving a degree in English and Sociology with teaching certification.  She returned to Arlington and fulfilled her dream:  teaching secondary English and Sociology for thirty six years, with the last twenty three years teaching at Martin High School.  Upon retirement, Pam chose to tutor elementary and high school students for AISD.  Her areas of expertise are Reading and Writing, as well as building self-esteem and confidence in the students she works with.

Pam lives in Arlington with her husband, Kevin.  She enjoys reading, working out, visiting friends, and singing.  Pam has two grown sons, Nick and Grant, one grandson, Declan, and another grandson due in July.  She is passionate about teaching and looks forward to using her time and gifts to help students.

Kathy Frazer

Reading/ English

Kathy Frazer received her Bachelor of Arts degree in Speech Communications from Oklahoma Baptist University.  She is certified to teach Speech, Drama, Reading and English.  Kathy has been teaching for twenty-five years, most recently in Grand Prairie.  She has taught Reading, English, and Character Education for grades 6-12.  She also taught as a Graduate Assistant at the collegiate level for one year.  

Kathy lives in Arlington and is active at Lake Church.  After she became a widow in 2012, she began to minister to others who have experienced loss through Griefshare, where she serves as a facilitator.  She has two married sons, two granddaughters, age three months and six months, two bonus granddaughters, ages eight and four, and a grandson due in September.  She loves spending time with her family, and is looking forward to exploring new ministry opportunities.  Kathy is retiring in 2020, and wants to continue to assist students in their pursuit of learning through tutoring.

Brianna Lavelle

Secondary Math

Brianna Lavelle, a beach girl at heart, has lived in Arlington for eighteen years.  She earned her undergraduate degree from the University of California, Santa Barbara, and her juris doctorate from Southwestern School of Law in Los Angeles.  She began teaching five years ago at Martin High School and loves it more each year.  Algebra I and Algebra II, Pre-AP and Regular, as well as Geometry, are her favorite classes to teach.  She understands that building confidence and encouraging students to think creatively makes learning math more personal and more fun!

Brianna lives in Arlington with her husband, Jim, their three children, and dog.  She enjoys traveling, exercising, reading, and spending time with her family.  Brianna’s heart is truly the heart of an educator – she loves helping others.

Sherry McCrary

Reading Specialist


Sherry McCrary received her Bachelor of Science degree in elementary education with a certification in learning disabilities from Texas Tech University.  She also has a MA from Texas Wesleyan University with a Reading Specialist certification in K-12.  Sherry taught in AISD for thirty- five years; twenty-nine of those years were at Martin High School.  Sherry has worked with a wide variety of learning disabilities, including dyslexia.  She has successfully tutored dyslexic students, increasing their reading comprehension, increasing their Lexile score, and increasing their confidence.  She believes that reading is foundational to a student’s success and strives to create a love of reading in all her students.

Sherry is happily married to Chester and they enjoy traveling together.  Sherry and Chester have been blessed with two daughters and three grandsons.  Her hobbies include spending time with family, reading, and yoga.

Dean Parlin

Secondary Math

Dean Parlin is a proud product of Arlington ISD.  He graduated from Stephen F. Austin State University, earning a degree in Speech Communications with a teaching certification.  Dean added an additional teaching endorsement in Math and has taught secondary Mathematics, with specialization in Algebra and Geometry for the past twelve years.  He has also coached football, basketball, volleyball, track, and soccer.  Dean currently teaches Algebra and Geometry at Martin High School.

Dean lives in Arlington, sharing the blessings of life with his beautiful wife, Katrina, and their amazing one-year old daughter, Tea.  He enjoys golf, bicycle riding, gardening, and changing diapers!  He considers it an honor to serve his community as a teacher and coach.

Laura Porras

Secondary Science

Laura Porras graduated from Texas Christian University with a Bachelor of Science degree in Middle School Science Education and Masters Degree in Education. Laura is certified to teach 4-12 Science, and has experience teaching Astronomy, Biology, Chemistry, Advanced Chemistry, Earth and Space, and Environmental Science. She has taught for ten years, the last five in Arlington ISD at Martin High School. She is a Google Certified Educator, a SOAR sponsor at Martin, and loves volunteering on the weekends at Wings of Hope Equitherapy Center. 


Laura lives in Arlington with her husband Sam, who is also a teacher, and an orange tabby cat named Sunshine. She and her husband enjoy traveling and exploring new places, with the dream of visiting every state and continent (she’s half way there!). One of her favorite things to do is read about scientific and historic discoveries that she can incorporate into her teaching to give students real examples that can be applied to their learning.

Young Students