Our Colossal Academy Team
Shiren Rattigan
Founder, Owner-Fort Lauderdale
Shiren Rattigan is the pioneering founder of Colossal Academy and networking microschools emphasizing contemporary entrepreneurial education. As owner and principal Educational Curator of Colossal Academy and a UC Berkeley Extensions Educator, her work has been recognized in Forbes, Sun Sentinel, LiberatED, and ReimaginED. A VELA Education Fund and YASS Stop Award Quarterfinalist, her 12 years in adolescent education have solidified her role not only as a teacher but also as a passionate advocate for young voices. Beyond education, Shiren is a dedicated wife and mother to three exceptional daughters.
Katy Corbin
English/Language Arts Instructor
Katy Corbin holds a bachelor’s degree in elementary education and teaches middle school English Language Arts at Colossal Academy. With experience teaching in a traditional classroom, homeschooling for fourteen years, teaching at local tutorials and co-ops, tutoring students one-on-one, and teaching online for the last eight years, Katy has learned to value connecting with each student individually. Because reading meaningful literature and becoming proficient at writing can be challenging for middle schoolers, Katy strives to keep class fun while steadily helping students build their skills and confidence as readers and writers.
Lucia Erazo
Spanish Instructor
Lucía Erazo is a Special Education teacher with a Master’s degree in Education and 19 years of experience working in education, including working with students with diverse learning needs. Her areas of expertise include differentiated instruction, academic intervention, and individualized learning support. At Colossal Academy, she teaches Spanish using differentiated instruction and adjusts lessons to meet students’ individual needs and levels of proficiency. Her lessons focus on building foundational Spanish skills, including vocabulary, communication, and beginning grammar, while providing additional support when needed. She loves getting to know her students, celebrating their progress, and helping them develop the confidence and skills they need to become more independent learners.
Fateca Grant
Environmental Science Instructor
Fateca Grant is a dedicated science educator with 15 years of experience in education. She
holds both a bachelor’s and master’s degree in Biological Sciences, along with a specialist
degree in Educational Leadership. She is passionate about creating engaging, student-centered learning experiences that inspire curiosity and connect science to the real world. She lives in
Mississippi with her husband and three children. Outside of teaching, she enjoys reading and
salsa dancing. She is committed to helping students build confidence, critical-thinking skills, and a lifelong appreciation for learning.
Courtney Nicolaides
Global Classroom Coordinator
Courtney has had the opportunity to work in large-scale international education projects in both the public and private sectors from preschool to graduate studies.
First and foremost, she is a teacher and she has had the opportunity to work as a school principal, university administrator, and curriculum, evaluation, and materials designer. She now is so blessed to be able to contribute to education at Colossal Academy as the Global Classroom Project teacher.
Motinola Agunbiade
Co-Director-Fort Lauderdale, Academic Director of Colossal Academy Online
Motinola is an experienced educator with an enthusiasm for English Language Arts. She has dedicated the past 10 years to teaching students from diverse backgrounds in middle school and high school, both domestically and internationally. Motinola strongly believes in the power of connecting schools to the community and fostering meaningful relationships. She finds working with adolescents to be incredibly rewarding, recognizing their potential as remarkable individuals with the power to shape the present and future.
George Rosaly
Mathematics Instructor
George Rosaly is an educator with more than 14 years of experience supporting students through engaging, student-centered instruction. At Colossal Academy, he teaches Pre-Algebra, Algebra, and College Algebra, helping students build confidence while making challenging math concepts feel approachable and relevant. George holds a master's degree in Administration and Education and has served in teaching, instructional leadership, and academic support roles. He believes students learn best when they feel supported, challenged, and comfortable asking questions, and he enjoys creating an encouraging virtual classroom where students can grow at their own pace.
Marvin McCrary
Social Studies
Instructor
Marvin McCrary holds an Associate of Arts in Liberal Arts from Gavilan College and a Bachelor of Arts in History from San José State University. His professional experience encompasses traditional classroom instruction, tutoring, small-group pedagogy, and online education, as well as curriculum development and academic leadership as a department chair. His approach to the study and teaching of history emphasizes historical inquiry through the lens of human experience, recognizing the past not merely as a chronology of dates and events, but as the complex lived experiences of individuals and communities navigating transformative and extraordinary circumstances.
Darleen Martinez
Communication and
Design Specialist
Darleen is an artist and educator whose practice engages the power of digital technology as a space for resistance and exploration. Darleen is particularly interested in creating visual communication that intersects with social justice as a way to craft new nodes of knowledge exchange.
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