Teachers and Staff
Our team of dedicated teachers, administrators, and staff works hard every day to ensure that students receive the best education possible in a safe, nurturing environment. We encourage parents to get to know our teachers and staff. If you ever have a question or concern, we invite you to contact us.
Administration
Reegan Heddings
Principal
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Biography
Meet Reegan Heddings
Hometown
Peoria, AZFavorite Subject
EnglishHobbies
Family, friends, hiking, reading, and cabin timeMessage
Emerson said "Do not go where the path may lead, go instead where there is no path and leave a trail." Be brave, stay positive, and take a few risks on your journey.
Ann Catlin
Assistant Principal
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Biography
Meet Ann Catlin
Hometown
White Bear Lake, MinnesotaWhere I Started Teaching
Littleton Elementary SchoolHobbies
I enjoy spending time with my children and extended family. We love spending quality time together on the water boating, fishing, and swimming. My happy place is the beach.Message
My passion is supporting the success of children and families. I am honored to partner with Collier Business Academy parents and families to ensure the optimal learning and development of our children.
- BS Business Management (Finance). University of Minnesota, MPLS, MN
- MAED Elementary Education, St. Catherine, St. Paul, MN
- Educational Admin K–12, Saint Mary's University of Minnesota, MPLS, MN
Richard McCormick
Dean of Students
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Biography
Meet Richard McCormick
Hometown
Sturgeon Bay, WIHobbies
Fishing, golfing, skiing, kayaking, hiking, and anything outside.Message
Thank you for letting me help your student reach their optimum learning potential. Attitude is altitude.
Debbie Maxfield
Administrative Secretary
Biography
Jackqueline Bravo
Office Support Junior
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Biography
Office Support
Ruth Ann Lamberd
Librarian
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Biography
Teachers
Kindergarten
Barbara Maddux
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Biography
Meet Barbara Maddux
Hometown
Born in Bisbee, Raised in PhoenixWhere I Started Teaching
Littleton Elementary School, Avondale, AZFavorite Subject
ReadingMessage
Welcome to kindergarten! Thank you for sharing your child with me!
Ellie Meade
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Biography
Meet Ellie Meade
Hometown
LeMars, IAWhere I Started Teaching
Collier Elementary SchoolFavorite Subject
Reading/WritingHobbies
Traveling, spending time with friends and family, like to try new foods, reading, and being active.Message
I am very excited to start my first year teaching as a kindergarten teacher at Collier Elementary School! I am looking forward to meeting as well as getting to know each student and helping them succeed and grow in their education. 
First Grade
Sofia Aljessar
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Biography
Meet Sofia Aljessar
Hometown
San Diego, CAWhere I Started Teaching
Rios Elementary SchoolFavorite Subject
EnglishHobbies
Reading, hiking, and visiting museums and amusement parks.Message
Welcome to Ms. Aljessar's class for the 2019–2020 school year! I am excited to work with you and your children this year.
Jaslyne Canales
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Biography
Meet Jaslyne Canales
Hometown
Laveen, AZFavorite Subject
MathHobbies
Spending time with family and friends, watching YouTube vlogs, and travelingMessage
My goal as a teacher is to encourage minds to think, hands to create, and hearts to love. Let's make this school year a great one!
Jamie Rau
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Biography
Meet Jamie Rau
Hometown
Surprise, AZFavorite Subject
Social StudiesHobbies
Traveling with my kids and husbandMessage
I am excited about teaching your kiddos this year!
Second Grade
Maria-Ana Moneda
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Biography
Meet Maria-Ana Moneda
Hometown
Manila, PhilippinesWhere I Started Teaching
Littleton School DistrictFavorite Subject
Music and ArtHobbies
Working out, exercising, listening to music and audio books, and dancing.Message
I am happy to welcome you to the 2021–2022 school year! I am excited to be your child’s third-grade teacher! We will have an exciting year filled with lots of new friends, adventures, and fun learning. My main goals are for students to feel successful and to spark joy in their learning journey! I am looking forward to a productive partnership with you to ensure our children can achieve their highest potential. Third Grade
Traci Graham
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Biography
Toni Sangervasio
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Biography
Meet Toni Sangervasio
Hometown
Pocatello, IDWhere I Started Teaching
Collier Elementary SchoolFavorite Subject
I love EnglishHobbies
My hobbies include cooking delicious and healthy food, reading, painting, coaching gymnastics, and doing gymnastics.Message
I am looking forward to having an amazing school year and getting to know everyone!
Fourth Grade
Sean Barry
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Biography
Meet Sean Barry
Hometown
Mansfield, CTWhere I Started Teaching
Collier Elementary SchoolFavorite Subject
Social StudiesHobbies
Playing/coaching sports, playing guitar, singingMessage
"Students don't care how much you know until they know how much you care." - Anonymous
Josephine Neuenfeldt
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Biography
Fifth Grade
Olivia Tena
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Biography
Sixth Grade
Sabrina Plaza
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Biography
Melissa Torres
Social Studies
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Biography
Meet Melissa Torres
Hometown
Lubbock, TXWhere I Started Teaching
Country Place Leadership AcademyFavorite Subject
MathHobbies
Scrapbooking, baking, and going to the moviesMessage
Always remember you are braver than you believe, stronger than you seem, and smarter than you think. I can do all things through Christ who gives me strength!Seventh Grade
Petrit Gashi
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Biography
Lisa Nahrgang
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Biography
Eighth Grade
Trevor Butler
ELA
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Biography
Meet Trevor Butler
Hometown
GlendaleFavorite Subject
EnglishHobbies
I enjoy spending time with friends and family, exercising, reading, watching movies, technology, video games, enjoying new experiences, and supporting local sports teams.Message
My classroom philosophy has two components. The first is a "Commitment to Excellence" and the second is the belief that all students can and will be successful in my classroom. I feel truly fortunate to be a teacher, and after 20+ years I'm still humbled by the opportunity I've been provided. 
Leticia Mattei
Social Studies
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Biography
Meet Leticia Mattei
Hometown
Phoenix, AZWhere I Started Teaching
Edison Intermediate Center, South Bend, INFavorite Subject
HistoryHobbies
Photography and travelingMessage
"There is no end to education. It is not that you read a book, pass an examination, and finish with education. The whole of life, from the moment you are born to the moment you die, is a process of learning." - Jiddu Krishnamurti
Rhayne Moorcones
Science
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Biography
Meet Rhayne Moorcones
Hometown
Glendale, AZWhere I Started Teaching
Collier ElementaryFavorite Subject
Art, ELA, ScienceHobbies
Art, reading, writing, campingMessage
I am excited for a fun year of learning and growing with all of you! 
Lance Sullivan
Math
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Biography
Meet Lance Sullivan
Hometown
San Jose, CAWhere I Started Teaching
Collier Elementary SchoolFavorite Subject
Math and ArtHobbies
Carpentry, math, cooking, and swing dancingMessage
I am a Christian, husband, father, and teacher. I am grateful for the opportunity and pleasure of taking on all these roles! Thank you for allowing me to care for and teach your children mathematics. I will wholeheartedly do both!
Exceptional Learning Teachers
Diana Gutierrez
3–6 BSP
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Biography
Kimberly Parsley
5–6 BSP
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Biography
Kelly Gibson
6-8 Resource
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Biography
Meet Kelly Gibson
Hometown
Tempe, AZWhere I Started Teaching
Collier Elementary SchoolFavorite Subject
Social StudiesHobbies
Spending time with family and friends, reading, going to Disneyland, crafting, home repair projects, and shoppingMessage
"Every child deserves a champion - an adult who will never give up on them, who understands the power of connection and insists that they become the best that can possibly be." - Rita Pierson 
Deirreio Duncan
Behavioral Support 7–8
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Biography
Meet Deirreio Duncan
Hometown
Flint, MIWhere I Started Teaching
Collier Elementary SchoolFavorite Subject
Social StudiesHobbies
Coaching football, basketball and making music.Message
Success is not final; failure is not fatal. It is the courage to continue that counts.
Elena Jones
K-5 Resource
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Biography
Student Achievement Coach
Special Areas
Jeremiah Gallegos
Business Focus
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Biography
Meet Jeremiah Gallegos
Hometown
Litchfield Park, AZFavorite Subject
HistoryHobbies
Playing soccer, Ps4 (Apex Legends), cycling, and camping.Message
"An investment in knowledge pays the best interest. " - Benjamin Franklin 
Ilene Lieberman
Music
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Biography
Meet Ilene Lieberman
Hometown
Orinda, CAWhere I Started Teaching
Collier Elementary SchoolFavorite Subject
ChoirHobbies
Singing, hiking, cookingMessage
All students can be musicians if we work in harmony!
Andrea Mejia
Art
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Biography
Jose Urquijo
P.E.
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Biography
Meet Jose Urquijo
Hometown
Superior, AZWhere I Started Teaching
SuperiorFavorite Subject
MathHobbies
Fishing, camping, cooking, coaching, playing baseballMessage
Always continue striving to reach your goals.
Marissa Wilt
Band
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Biography
Meet Marissa Wilt
Hometown
Woodville, OHFavorite Subject
MusicHobbies
Trumpet, music, reading, horseback ridingMessage
"Music can change the world because it can change people." - Paul Hewson
Michelle Younghans
Gifted
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Biography
Meet Michelle Younghans
Hometown
San Marcos, TXWhere I Started Teaching
Cholla Elementary School, Casa Grande, AZFavorite Subject
Reading and ScienceHobbies
Exercising, reading, hiking, taking care of my petsMessage
"If you can imagine it, you can create it. If you dream it, you can become it." - William Arthur Ward School Support
Mike Linehan
School Psychologist
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Biography
Meet Mike Linehan
Hometown
Phoenix, AZWhere I Started Teaching
Pioneer Elementary School, Glendale, AZFavorite Subject
PsychologyHobbies
Biking, running, collecting and listening to vinyl records, going to concerts to see live music, and grillingMessage
I became a teacher because I enjoy the kids. I became a school psychologist because I wanted to support programs to help our kids, and I come to school every day because I believe every child is important, can learn, and contribute to our world. 
Terese Wilson
ELL Interventionist
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Biography
Meet Terese Wilson
Hometown
Belize City, BelizeWhere I Started Teaching
I started teaching at the Murphy School District as a 2nd grade teacher and stayed at the district for 9 1/2 years before moving closer to home.Favorite Subject
I feel math is my favorite subject, but most say that I am really good at reading.Hobbies
I love to swim, read, and hike.Message
Education is the passport to the future, for tomorrow belongs to those who prepare for it today.
Kevin Salazar
Psychologist Intern
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Biography
Michelle Hannah
Reading Interventionist
Biography
Pamela Leeper
PT
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Biography
Heather Royster
OT
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Biography
Angela Garza
Early Childhood Paraprofessional
Biography
Taylor Gibson
Early Childhood Paraprofessional
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Biography
Christina Urbajelo
Early Childhood Paraprofessional
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Biography
Rebecca Gonzalez
BSP Specialist
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Biography
Esteban Abril
BSP Specialist
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Biography
Vladimir Soriano
BSP Specialist
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Biography
Isa Mora-Perez
Resource Paraprofessional
Biography
Christina Pasillas
Resource Paraprofessional
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Biography
Leroy Wilson
Behavioral Support Specialist K–4
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Biography
George Gonzales
Lead Custodian
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Biography
Jose Arias
Day Custodian
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Biography
Salome Alvarado
Night Custodian
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Biography
Maria Romero
Night Custodian
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Biography