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Our Staff

Arroyo School is proud to have an excellent team of educators. Teacher teams listed at the bottom of the page. A full list of the staff and email addresses can be found on the Contact Us page. See teacher's website or Shutterfly sites for class information.



Jessica Blumen, Principal

  • I began my career in education in 1999. I was a teacher and an administrator in Houston, Texas before moving back to my hometown, San Carlos, in 2009. Since then, I have been fortunate to enjoy roles in education as a teacher and an administrator here in California.
  • As a student, I attended Brittan Acres K-5 and Central Middle School 6-8. I truly LOVE the San Carlos School District!
  • I enjoy spending time with my family and my adorable dogs! I am also a huge sports fan. Having grown up here in the Bay Area, I am a faithful fan of the Giants, the Warriors, the 49ers, and Stanford women's basketball! I thoroughly enjoy spending time outdoors, hiking, kayaking, golfing and running.

Tracey Olazar, Secretary

  • I have worked in various capacities with the SCSD PTA's for 14 years.
  • I have worked for SCSD for the past 4 years as a Para Educator and Secretary.
  • Hobbies: I love to travel with my family and friends. I enjoy music, coffee, animals, horseback and bicycle riding, the beach and mountains.

4th Grade Teachers:


Krista Carroll

  • I started teaching in 2001.
  • I have taught grades 1, 2, and 3. I taught in the Pacifica School District for 10 years, Santa Cruz County for 2 years and volunteer taught in Antigua, Guatemala and Bradford, England.
  • Hobbies: Spending time with my family, running, biking, reading, and traveling.

Kirsty Mooney

  • I have enjoyed the career of teaching since 2002.
  • My teaching experiences include: K, 1, 2, 3, 5 and 6.
  • Relaxations and passions in life include: Time with my family and friends, being in nature-especially hiking, creature-all with a slight aversion to smaller creatures that “crunch”, science and art, playing with words, sharing that "ah-ha" or "Woah! That’s cool!" moment.

Nicole Murray

  • I have been a credentialed teacher since 2005.
  • I received my masters in special education in 2016.
  • I have taught grades K-2 and 4-8 in varying capacities.
  • I was a textbook editor at McGraw-Hill in Chicago.
  • Hobbies: Running, yoga, reading, music, spending time with friends and family!

Megan Scatena

  • I started teaching in 1998 and have taught in East Palo Alto, Pleasanton, and Los Altos.
  • I've loved teaching 1st and 2nd grade and am excited to move up to 4th!
  • Hobbies: Spending time with my family and friends, exercising, and traveling

Sheila Sevilla

  • I began my teaching career in 1996, and joined the San Carlos School District in 2001.
  • I’ve taught 1st, 2nd, 4th and 6th grade.
  • Hobbies: I love being active outdoors hiking, running, and bike riding.  I also love to spend time with family and friends, and enjoy lifelong learning.

5th Grade Teachers:


Marianne Cheatham

  • I started teaching in 1992 in Simi Valley, then continued teaching in San Mateo before taking time off to stay home with my 3 daughters.
  • I was hired in San Carlos in 2008 as a substitute, then a part-time and finally a full-time teacher.
  • I have taught 1st thru 5th grades.
  • Hobbies: Outside the classroom I enjoy spending time with family and friends. I love reading, listening to music, baking, and being outdoors.

Jennifer Crettol

  • I started teaching 5th grade in 2007 at San Carlos School District (Central Middle School).
  • I have taught five years math/science core, and four years language arts, social studies, math, and science (self-contained).
  • Hobbies: Disneyland (and all things Disney), traveling, photography, reading, baking.

Maggie Gallagher

  • I come from Southern California, where I taught all elementary grades, K-6 for 18 years at Knolls Elementary.
  • I was then a principal for four years at the above school.
  • I moved to Northern California in the summer of 2017 and spent the school year assisting in an elementary school close to my home.
  • My interests are music, traveling, spending time with my family, especially my grandchildren, reading literary fiction, riding my bike, and taking walks with my Pomeranian buddy, Max.

Shelli Murphy

  • I started my teaching career in 1998.
  • I’ve taught kindergarten, 5th and 6th grade.
  • Hobbies: Spending time with my family and friends are a few of my favorite pastimes. I thrive to be active and especially love to run, hike, and ski. When I’m feeling especially adventurous, I join my boys (Joe, 12 and James, 8) on the ice for a little hockey.

Angela Naughton

  • I began my teaching career as a volunteer at Kilimani Elementary in Arusha, Tanzania, in 2003.
  • Following my student teaching in grades 2, 3, and 4, I joined SCSD in 2006, working first as a Resource Specialist for grades 5-8, before moving to teaching 5th grade in 2012.
  • Hobbies: I enjoy reading, writing, bike riding, and spending time with my family in San Francisco and Lake Tahoe.

Michelle Robinson

  • I started my teaching career in 1997.
  • I have enjoyed teaching both in the middle school and elementary level -  8th, 5th, 4th and 3rd grade.
  • Hobbies: I LOVE laughter and enjoy spending time with family and friends. My favorite place to be is the beach. When I’m not teaching, I love to read and spend time with my family.

Education Specialists:


Jenny Brady

  • Last year I taught 5th and 6th grade at Tierra Linda Middle School.
  • I’m looking forward to a new school.
  • Hobbies: I enjoy traveling, hiking, and spoiling my cat.

Miriam Seigel-Stern

  • I started teaching in 1983.
  • I’ve taught 1st-4th, 1st-3rd, 3rd-4th.
  • Hobbies: Family, friends, walking, outdoors, reading, movies.
  • My own children attended White Oaks, Central and Sequoia

Meagan Vizier

  • I have taught for 15 years - 5 years at Central, 5 years at a nonpublic school in San Francisco and 5 years at Ingrid B. Lacy Middle School in Pacifica.
  • Hobbies: Running, playing soccer, reading, spending time with family and friends.
School Counselor:

Andrea Dimas

  • I started counseling in 2008 with a middle school in San Francisco.
  • Since then, I have been a counselor for multiple grade levels, age groups, and settings throughout the bay area - including high school, preschool, elementary school, and adults.
  • Hobbies: Volleyball, Snowboarding, Art, Traveling the world, Laughing and Playing with family and friends.
PE Teachers:

Patti Blumen

  • I began my teaching career at Central Middle School in 1988.
  • I have taught physical education and coached volleyball and basketball.
  • I grew up in Brentwood, CA (east bay) on a farm producing apricots and pistachios.
  • I love to spend time with my family. I enjoy traveling, hiking, genealogy, and spending time with friends and my dogs.

Alaina Cardona

  • I’ve been teaching 6th,7th,8th Physical Education since 2012.
  • I love spending time with my son and husband. I have two dogs, Lola and Coco, a cat named, Ninja. I love animals!
  • I really enjoy watching the San Francisco Giants and 49ers and of course, the Warriors. My favorite places to travel are Disneyland, Hawaii and Boston!
Music Teachers:

Colyn Fischer, Orchestra Director

  • I've been teaching music since 2005, starting in my native Pennsylvania and since 2008 here in San Carlos. Before that I was a professional violinist in Pittsburgh and Chicago.
  • I've been playing violin since 1980 and after school I put my musician cape on and try to make the world a little more awesome with my fiddle!
  • I have a cat named "Petunia" with lots of whiskers and personality who likes to sing at night.
  • Hobbies: Hiking, camping, travel, reading, writing, listening to good music and making art!!!

Nick Garcia, Band 

  • I have been teaching music since 2012 and have been teaching in San Carlos since 2017
  • I have a lot of experience instructing high school marching band programs in both Northern and Southern California and also run a brass section of a drum and bugle corps from Concord, CA
  • My fiancée, Laura, is also a teacher in Dublin, CA where she teaches 4th grade 
  • Hobbies: golf, Ultimate Frisbee, traveling, reading, cooking, and making music!
Exploratory Classes:

Katie Gotelli, Makerspace

  • I've been working in the field of education and child development for over 15 years. For the past 10 years I have been affiliated with Galileo Learning and have been a part of managing Camp Galileo and Galileo Summer Quest in San Carlos at Brittan Acres.
  • I've taught almost every age group from Preschoolers to High Schoolers. I am passionate about making education fun and accessible to every child.
  • Hobbies: I enjoy volunteering and finding things on Pinterest to make.

Greg Zillmer, Design

  • Started teaching: 2009
  • Have taught: 1st & 2nd grade; 6th grade Math & Earth Science; 8th grade Math; 4th-8th grade Design Thinking; 7th-8th grade Computer Science
  • Hobbies/Passions/Interests: Spending time with my wife and daughter; playing and watching sports, especially basketball, baseball, and hockey; going on adventures, both down the street and around the world; and eating anything and everything!