The CSA staff has been hand-picked and selected because they have an understanding and commitment to the STEM philosophy. All staff members have undergone intensive training and certification. Like the students, the staff is at CSA by choice.

Colorado STEM Academy Administrative Team:

Principal: Brenda Martin | | 720-542-4627

Assistant Principal: Heather McGuire  | | 303-487-2869

Dean/Instructional Coach: Lindsay Lohmann  | | 720-542-4644

Colorado STEM Academy ESP Staff:

Secretary: Nikki Reynolds | | 720-542-4625

Office Assistant: Deb Lietzan | | 303-487-2847

Office Assistant: Hailey Abel |  | 720-542-4628

Instructional Assistant: Elizabeth Gonzales |

Building Aide: Sue Duran |

Building Aide: Cynthia Pacheco |



Colorado STEM Academy Student Support Team:

Kendra Schreck | kschreck@westminsterpublicschools.org720-542-4512

Mary Yarbrough | myarbrough@westminsterpublicschools.org720-542-4643

Cristy Snyder | |  720-542-4511

Kerry Golden | kgolden@westminsterpublicschools.org720-542-4511

Chelsea Blanchard | 

Les Fleming |

Colorado STEM Academy Teachers:

Stevi Brooks
 Hi my name is Stevi Brooks and I am teaching Kindergarten. I worked in Denver Public schools for 3 years teaching 1st grade. I am excited to be starting my first year at Colorado STEM academy. I have a Bachelor’s degree in criminal justice from Metropolitan State College of Denver and my teacher licensure from University of Colorado Denver. I enjoy spending time with my fiancé Mike and our two dogs, Lola and Lily.
Annie Stillwell
I am delighted to be working with you and your first graders for the remainder of the school year. I have a Bachelor’s Degree in Spanish Literature and Arts and a Teaching Certification in Elementary Education from University of Colorado of Denver. I am currently in pursuit of my masters’ degree at University of Colorado at Denver. For the past 6 years I have been a teacher for Denver Public schools. There, I taught kindergarten, first grade as well as English Language Development for second language learners in grades k-5th. In addition to English, I am able to speak both Vietnamese and Spanish. I love teaching, and throughout my years, I have learned that my passion is with the younger students. All of this is to say that I am incredibly excited to work with the first graders at Stem Academy. I have an 8 month old son named Finley, guardianship over my 15 year old niece Atlantis and an amazing husband named Randall. On our free time we love to take our dog Emmie to new dog parks, play outdoors and watch movies. I am super excited to finish off this school year with all of you!
 Carli Yameen
My name is Carli Yameen and I am a level 1 teacher. I have taught first and third grade for the past three years. I have also taught ESL in Spain to all ages of learners. I love children and teaching is my passion. I am fluent in Spanish and am continually working to improve my teaching practice. I recently got married to my husband Braheem and we love cooking, grilling, biking, kickboxing and traveling. I am extremely excited to be part of the Colorado STEM Academy.
 Jeanette Dodds
 I have been teaching in Westminster Public Schools for nine years. I attended the University of Colorado at Boulder earning a degree in Spanish and Elementary Education (Go Buffs!). Later, I received my master’s degree in Curriculum and Instruction. My favorite part of teaching is the “light bulb moment” when students learn something new and can’t help but light up with excitement and wonder. I grew up in Idaho and Georgia. Later, my family moved to Denver, Colorado. I love spending my free time outside playing in the mountains, doing yoga, cooking, or reading my latest book club title. This summer, I went on a long road trip that included Durango, CO, Park City, UT, and Idaho. My husband Tyler and I just celebrated our 2nd wedding anniversary.
Bree Moth
I am so excited to be teaching at the Colorado STEM Academy this year.  This will be my fifth year teaching and last year I was the instructional coach at Harris Park Elementary.  I obtained my Masters of Education from the University of Northern Colorado and just finished my principal licensure at the University of Colorado, Denver. I have an 8 month year old son, named Bailey and a wonderful husband named Paul (we are all Colorado natives!). We love to run, hike, paddleboard, ski and read – Bailey is very excited to learn all of these things!
Steph Marantino
I am so happy to be a part of the CSA team! I graduated from Colorado State University with a Bachelor of Science degree in Human Development and Family Studies. I received my teaching license through the University of Colorado at Denver. After teaching for a few years, I earned a Master’s degree in Curriculum and Instruction with an emphasis in Elementary Science Education from University of Colorado at Denver. I love spending all of my free time with my family. I have a supportive husband who is also a teacher. We have a three-year-old son, Sammy, and a one-year-old daughter, Ivy.
Jamie Jay Summers
 Greetings! Just to clear up confusion my last name is Jay Summers, but I happily go by either or both as the mood strikes you! My wonderful husband Taylor is very indulgent about the combo of his name and mine. I am a proud Cougar graduate of BYU in Education. I lived and worked in phoenix, Arizona for 5 years at an IB school. When the opportunity came to move back to Colorado (where both Taylor and I originate from) we jumped at the chance. I taught for a year in Sheridan and now have the great pleasure to join the team at Colorado STEM Academy in level 4 (my favorite age!)
 Julie Pitz
Hello my name is Julie Pitz and I will be teaching 4th and 5th grade Literacy and social studies. I grew up in Windsor, Colorado. After attending college oat, the University of Kansas I moved abroad to Taipei, Taiwan. I taught for three years and then returned to the U.S. to go back to school. I now live in Westminster with my crazy dog Luke.
Jourdan Lamb
 Hi! I grew up in Thornton, CO and got my degree in psychology from University of Colorado – Boulder. I have worked as a substitute at every school in the district, and can honestly say the STEM Academy is my favorite! I am so excited to teach my classes for the remainder of the year here. In my spare time I like to cook, try new restaurants with my husband Brian, and play with my dog and rabbit.
Andrea Schmuttermair 
 “I am thrilled to be in my 9th year of teaching, and what better way to celebrate this than being part of a brand-new school, the Colorado STEM Academy. In these past 8 years, I have taught first through sixth grade, and taught in Germany, California and here in Colorado.I received my bachelor’s degree in Elementary Education with a minor in German from the University of San Diego in San Diego, California. I also have a graduate certificate from the University of Denver in Animal-Assisted Therapy. Currently, I am working on my Master’s Degree in Educational Technology Leadership from The George Washington University.Outside of school, I love to travel and be outdoors. This past summer I traveled to Austria to do a backpacking hut trip and visited family in Germany. On the weekends, I love to ride my bike, hike and trail run with dog, Wesson.”
Michelle Vadnais
I came to you all from the Cherry Creek Schools District where I taught 6th and 7th grade math and literacy intervention. In addition to teaching I’m finishing my Master’s degree in reading, writing, and culturally responsive teaching. My free time is spent with my fiancé, Tyler, and our baby puppy Bear. We love hiking, biking, rock climbing, and every other outdoor sports! I am thrilled to be your teacher this year!!
Masa Vajzovic
 Hello! My name is Masa Vajzovic and I am a level 6 teacher at Colorado STEM academy. This will be my third year teaching and my first year at CSA! I have taught second grade math and fifth grade science. Outside of school, I like to spend my time outdoors. I like to play sports, rock climb, camp, and wakeboard. I also love to travel. I am thrilled to be a part of Colorado STEM Academy!
Jessica Sullivan
Hi! My name is Jessica Sullivan and this is my first year as a level 6 teacher at Colorado STEM Academy. Previously, I taught 1st, 6th and 7th grade and served as Literacy Specialist. I have a 10-year-old daughter, Lilah, and we both love reading, going to the mountains, and traveling. This past summer we took our first mother daughter road trip to Florida to experience Harry Potter World. I am so excited for this school year!
Micah Greenmyer
 My name is Micah Greenmyer and I am a secondary Science teacher here at Colorado STEM Academy. I received my bachelors of Science degree from University of Colorado and am completing my Master’s in Education from Regis University. I spent 8 years in the military. Married to my wife Kendra, and we have a 2-year-old and another on the way. I love sports, the outdoors, and relaxing with family
Salvatore Triolo
 Originally from New Jersey, I moved to Colorado to pursue my teaching career and take advantage of all that this great state has to offer. I enjoy hiking, ice hockey, reading, snowboarding, Brazilian Jiu Jets and spending time with friends and family. My passion for Social Studies is matched by my strong desire to challenge my students to reach their full potential as learners.
John Thanos
I am entering my second year at Colorado STEM Academy and am the new middle school language arts teacher.  This will be my fourth year of teaching after graduating from Purdue University and teaching at a large high school in Chicagoland for the last two years.   I learned so much from my colleagues and from the students in my first year at CSA.  I love the project based learning style and the active/collaborative environment that we have here.  I received my Master’s in Educational Leadership Policy Studies from UNC, and love using the things that I have learned in my own schooling in the classroom. In addition to teaching, I have experience in journalism and have coached varsity football and baseball.  In my free time, I enjoy watching sports and movies, and triathlon training.
 Kristin Griebel
I am happy to be entering my sixth year of teaching and my second year here at CSA!  I took a break from teaching and spent three years as a closing agent in the title industry, but I am now 100% sure that I was meant to be a teacher.  Throughout my years of teaching I have taught 5th grade, 7th grade, and high school.  I am originally from the great state of Ohio and earned my BA of Mathematics from The Ohio State University.  This summer I became a certified teacher in the Project Lead the Way series and will be introducing the flight and space program to our middle school students.  I also has time to visit home as my family welcomed two more baby girls.  My nieces, my dogs, and my students are my world and I am excited to enter a new year here at CSA!
 Nick Hamar
Hello, my name is Nick Hamar and I am the K-8 physical education teacher. I am originally from Casper, Wyoming and this is my 3rd year teaching here at STEM. I am excited to be the PE teacher here at STEM. Teaching kids healthy lifelong habits I think is critical especially at younger ages. I want to teach students to enjoy being active and how to work as a team and foster some collaborative skills. I have worked as a coach for 8 years in Wyoming working with high school and middle school students in football, basketball, and track. I have also sponsored a running and basketball clubs here at STEM. When I am not at work I love being outside with my yellow lab Sunny. We recently had our first child this fall named James.
Katrina Hanger
 Hello! My name is Katrina Hanger, and I am so excited for my new position at CSA this year as a K-2 Technology and PE teacher. My husband, Brett, and I love anything to do with the outdoors, so PE is right up my alley! We have two boxer dogs, Rooney and Lomu, that we take with us on our adventures. In my free time, you can find me hiking, camping, skiing, snowshoeing or even just sitting on the patio with coffee and a good book. I spent this summer playing with my 10 month old daughter, Abby. We went to the beach in Florida and camping in Leadville. With all our K-2 friends joining us, I know this will be the best year yet!
Edgar Lista
My name is Edgar Lista and I am a 11th year teacher originally from Colorado Springs, CO. This will be my 4th year in Westminster Public Schools, but my time teaching has been a wonderful experience. As a class, students are learning to develop there potential talents not only in Technology education, but also cross curricular. Communication, cooperation, and collaboration are all skills students learn to be productive citizens in our community. I am very proud and excited to say that I am a part of Colorado STEM Academy for the 2016-2017 school year.
Joey Costanza
 Hello! My name is Joey Costanza and I am so excited to be the K-8 Music Teacher at CSA. I believe that the arts and music are an integral part of early childhood development. Music teaches passion, understanding, confidence, and responsibility. In my free time, I enjoy anything to do with the outdoors. I have a Newfoundland dog named Koda who keeps me pretty busy, a cat, and four Hermit Crabs!  I sing professionally in St. Martins Chamber Choir of Denver, and am a sought after soloist for many musical organizations around Denver. I have a bachelor’s degree in K-12 music education from Metropolitan State University of Denver.  I can truly say at the end of every school day that I love what I do!
 Anne Farrell
 My name is Anne E. Farrell.  I go by “Annie” to adults and “Farrell” to my students.  This is my third year at Colorado Stem Academy, and I just love it.  I will be teaching art this year for K-8.  This is my 12th year, as a teacher.  I have taught high school in the inner city of Chicago, alternative high school in the Chicagoland area, 4th grade, and middle school social studies in Colorado.  My immediate family has all moved to the Denver area.  I live with my little sister, Kerry, and my two dogs, Ninja and Houdini.  On the weekends, I am either coaching volleyball or hanging with the  family.  I feel blessed to be a teacher and lucky to work with dedicated colleagues, wonderful children and the supportive families at CSA.