Our Team

Lindsay is a Digital Content Associate at Fishtank Learning. Prior to joining Fishtank, she worked in customer-facing and retail operations roles. She transitioned into the digital and technical field through her undergraduate studies, building experience in web design, accessibility, digital content, and front-end web development. She holds a Bachelor’s Degree in Web and User Experience. Outside of work, Lindsay enjoys spending time with her family, cooking, music, and spending time outside.

Sarah is the Senior Curriculum Director for Mathematics for grades 3-5. Sarah began her career in education through Teach For America Massachusetts, where she taught 7th and 8th grade mathematics. She then joined the staff at Teach For America as a manager of teacher leadership development, supporting and coaching their new math teachers of all grade levels. She has a Bachelor's degree in mathematics from Union College and a Master's degree in curriculum and teaching from Boston University. Sarah enjoys all things food - cooking and trying out new restaurants and cuisines.

Livvy is a School Partnerships Manager at Fishtank Learning. Before joining the Fishtank team, Livvy spent the past five years teaching early elementary school. She started her teaching career in Brooklyn, New York at Achievement First where she taught both Kindergarten and 1st Grade. Most recently, she taught Kindergarten at an independent school in Boston. Livvy is a graduate of Cornell University, where she got her B.S. in Human Development. She earned a Master of Arts in Teaching with a focus on early childhood education at Relay Graduate School of Education. In her free time Livvy enjoys running, coaching youth sports, spending time with family and friends, and being outdoors!

Marnita is an ES ELA Curriculum Writer. She taught elementary school for 13 years in Texas and Alaska before working as the Program Specialist for the Raven Writes program at Sealaska Heritage Institute. She is a National Board Certified Teacher with a bachelor's degree in Philosophy from Creighton University and master’s degrees in Reading and Writing Instruction from Southern Methodist University and in Curriculum Studies from the University of Hawai‘i at Mānoa. In her free time, Marnita enjoys running, snowboarding, mountain biking, and exploring outdoors with her two dogs.

Lauren is a Math Curriculum Writer for Grades 3-5. Prior to joining Fishtank, Lauren spent 10 years working in schools, serving as a teacher, coach, and math leader. She then transitioned from working school-site to working for national publishing organizations and nonprofits, providing math curriculum, coaching, and professional learning to educators across the U.S. Lauren earned a Bachelor of Arts degree in Elementary Education from Bay Path College and a Master of Education degree from Elms College. Outside of work, she spends most of her time reading nonfiction and poetry and walking around her very walkable neighborhood in NYC. She also enjoys hiking, snacking, going to museums, and watching live poetry.

Sarah is the Operations and Development Manager at Fishtank Learning. Sarah's previous work experiences include teaching English in Spain and working as a Healthcare Consultant, where she provided project management and data analysis support to project teams. She holds a B.S. in Education and Social Policy from Northwestern University. Outside of work, Sarah enjoys rollerblading, hiking, trying new arts and crafts, and baking.

Brittany is the Director of Digital Publishing at Fishtank Learning. She began her career in education with Teach for America South Carolina, and continued working in a variety of school and district level roles supporting students and educators for nine years. She has spent the past five years working in EdTech, at CommonLit and as a freelance consultant. Brittany holds a Bachelor's degree from Middlebury College, a Master's degree in Education from Coker College and a Master's degree in Library and Information Science from the University of South Carolina. Outside of work, she loves to spend time with her friends and family, cheer on women's sports, read, write, and garden.

Alliyah is a Digital Content Manager at Fishtank Learning. Prior to joining the Fishtank team, Alliyah was an editorial intern at OffBeat Magazine, where she assisted the music magazine with managing digital content and press releases. Alliyah was also a proud member of the Alpha Kappa Psi business fraternity where she served as the Vice President of Professional Development. Alliyah holds an Associate of Science degree from Richland College and graduated with a Bachelor's degree in English from Loyola University New Orleans. Outside of work, Alliyah enjoys spending time outdoors, writing, cooking, and traveling.

María Virginia Giana is a Research Fellow with Fishtank Learning. María held roles as both a general and special educator in the public school system. She was also a behavior and curriculum specialist, supporting students, teachers, and principals in PK-12 settings. She is currently a doctoral candidate at the University of Florida. Her research focuses on how policies impact student outcomes and educator working conditions.

Emily Glosser is a High School ELA Curriculum Writer. Her English teacher in the 11th grade ignited her love of literature and teaching, which inspired her to earn a B.A. in English and an M.A. in English from the University of Florida. Later she attended Teachers College, Columbia University where she received an M.A. in Secondary English Education. Before joining Fishtank, she taught high school English in New York City for six years and helped develop a curriculum project for the New York City Department of Education. When not working, she enjoys going to concerts, reading, cycling, and cooking.

Sarah is a Math Curriculum Writer for grades 6-8. She began her teaching career as part of Teach For America in Hartford, CT, and has since taught math and science for 10+ years across multiple districts. Sarah also spent several years as an instructional STEM coach, professional development specialist, and dean of curriculum and instruction. She holds a Bachelor's degree in Neuroscience and Behavior from Mount Holyoke College and has completed coursework in math teaching at the Master's level. Sarah believes that education has the power to change the world, and she is committed to centering anti-racism and equity in her professional and personal life. Outside of work, she enjoys baking, reading, and learning. She lives in Western Massachusetts with four young children and a well-loved cat.

Abby is an ES ELA Curriculum Writer. She holds a Bachelor's degree in Elementary Education from Goucher College and a Master's degree in Special Education from Touro College. She taught early elementary grades for five years, before going on to work as the Associate Director of Elementary Literacy at DREAM Charter school. Abby loves spending time with her family, reading, playing cribbage, and sewing.

Meg Hearn brings over 25 years of experience in math instruction, curriculum development, and educator learning. After earning her B.S. and M.S., she began her career as a classroom teacher in 1st, then 5th grade, and later served as a math instructional coach supporting teachers, families, and school leaders. She holds two graduate certificates and has achieved a NBCT certification. Meg has led large-scale curriculum development and has taught graduate-level courses focused on instruction and leadership. She has also served as a curriculum reviewer with EdReports, Student Achievement Partners for Achievement First, and on the American Institutes for Research NAEP Validity Panel. Meg is passionate about supporting all education stakeholders and ensuring students experience math learning that is joyful, inclusive, and meaningful. She enjoys hiking, traveling, cooking, skiing, reading, mathing, and spending time with her family.

Tajalli is the Managing Director of Growth & Strategy at Fishtank Learning. Before joining Fishtank, she was Head of Growth at OnYourMark, where she led nationwide expansion and partner engagement. She previously served as Senior Vice President at Galileo Learning, helping scale the organization to serve more than 600,000 children across 70 locations nationwide. She brings over twenty-five years of experience building and scaling mission-driven education organizations. Outside of work, she enjoys traveling, dancing, and spending time with family and friends.

Cristina is the Managing Director of K-12 ELA. Prior to joining the team at Fishtank, Cristina taught third grade and middle grades reading intervention, and served as a school leader and instructional coach for grades K-5 at Rocketship Education and grades 5-8 at Achievement First. Cristina developed ELA curriculum for Achievement First and most recently served as Director of Literacy for KIPP:NYC. Cristina holds a Masters Degree from Columbia University and earned her B.A. at Lafayette College. She enjoys reading, spending time at the beach, running, and everyday adventures with her family.

Tiffanie Johnson is the Director of Implementation Support. She began her literacy journey in Mississippi as a teacher for the Hinds County School District and Lee County School District. She then moved to Texas, working at KIPP Dallas Fort Worth in various roles, including Instructor, ESL Summer School Coordinator, and Upper School Literacy Coach. Later, Tiffanie became a District Lead Literacy Interventionist for Richardson Independent School District, overseeing reading programs to support interventionists and students. Most recently, she was an ELA Content Lead with Instruction Partners, where she helped develop leaders through professional development and support with implementing literacy curriculum programs. She holds a Master’s in Reading Education and a Bachelor’s in Elementary Education from Jackson State University. Tiffanie enjoys spending time with her family, shopping, and traveling.

Bio coming soon!

Claire is the CEO of Fishtank Learning. Prior to joining Fishtank Learning, Claire was a Vice President at the National Center on Time and Learning where she led the organization's knowledge management and dissemination work and developed materials and tools to support effective school redesign. She has produced numerous reports and videos on effective school practices. Claire holds a BA in Comparative Literature from Princeton University and a Master’s in Public Policy from Harvard University's Kennedy School of Government.

Maureen Kavanaugh is the ELA Curriculum Director for grades 9-12. Prior to joining Fishtank, Maureen was a high school English teacher for 17 years, starting her career at a small independent school in San Francisco, CA, before moving back to Boston and teaching at Newton North High School in Newton, MA. She has also served as assistant department head, teacher mentor, and instructional coach. Maureen has a B.A. in English from the College of the Holy Cross and a M.A. in English from Stanford University. Outside of work, Maureen loves to balance out running, hiking, and yoga with reading, podcasts, and traveling.

Cheryl is the ELA Curriculum Director for grades 6–8 at Fishtank Learning. She brings extensive experience in education, having served as a teacher, instructional coach, and assistant principal. Prior to joining Fishtank, she led K–8 literacy initiatives as Director of Literacy at the KIPP Foundation and designed early literacy curriculum with the National Summer School Initiative. She began her career in Miami-Dade and has since impacted schools across Memphis and beyond. She holds a Bachelor’s degree from Philander Smith College, a Master’s degree from Florida State University, and a Doctorate from the University of Memphis. Outside of work, she enjoys running, reading, leading wellness workshops, and spending time with her family.

Jessica Lamadieu is the Director of School Partnerships at Fishtank Learning. Prior to joining the Fishtank team, Jessica was a middle school English Language Arts teacher for 7 years in New York City public schools. She earned a Bachelor’s degree in Political Science and Cultural Anthropology from Rutgers University and a Master of Arts in Teaching and certification in Teaching Adolescent Exceptional Learners from Relay Graduate School of Education. Jessica currently resides in NYC. Outside of work she enjoys spending time reading, working out, and spending time with family.

Ryan is a Developer at Fishtank Learning. Prior to joining the Fishtank team, Ryan worked as a Publications Coordinator at Harvard University, organizing conference proceedings and managing websites for an interdisciplinary research center. He has worked extensively as an English tutor from middle school to the university level. Ryan holds a B.A. in English from UMass Amherst. Outside of work, Ryan spends his time reading, hiking, and camping.

Holly is a Digital Content Manager. She began her career in education after being hired at Narragansett Elementary School where she student taught at during college. For the past 8 years, Holly has taught kindergarten, 1st and 2nd grades at charter schools throughout New York City as well as Tampa, FL. Most recently, Holly was a Subject Matter Expert for K-2 Math for LearningMate. Holly holds a Bachelor’s degree in Early Childhood Education and Human Development and Family Studies from the University of Rhode Island. Outside of work, she loves to dance, go to spin bike classes and is an avid football and basketball watcher.

Faith is the Special Projects Director for the math team at Fishtank. She began her career at Match Community Day as a second grade teacher. Before joining the Fishtank Learning team she was the Teaching & Learning Manager at Mass STEM Hub where she helped support schools in their implementation of high quality STEM curriculum. She holds a Bachelor’s degree in sociology from Kenyon College. Outside of work Faith loves reading, hosting dinner parties, road trips, and discussing all things pop culture.

Katelyn Natale is a High School ELA Curriculum Writer. Katelyn began her career as a teacher in Massachusetts public schools, licensed as a 5-12 English teacher, K-12 English Language Learner teacher, and K-12 Program Director. Prior to joining Fishtank, she worked as a 6-12 curriculum writer for online curriculum platforms. Katelyn has a B.A. in English and secondary education, as well an Ed.M in Learning and Teaching with a focus in Instructional Leadership from the Harvard Graduate School of Education. Outside of work, Katelyn loves reading, traveling, being outdoors, and spending time with her family.

Jenna is an ELA Curriculum Writer for grades 6-8. Prior to joining the Fishtank team, Jenna began her career as a Teach for America corps member in Hartford, CT, where she taught second and third grade. She then taught fifth and sixth grade for a number of years at a charter school in Boston, where she also served as a mentor teacher. Most recently, she was the Content and Curriculum Developer at Alexander Twilight Academy, a nonprofit program that provides academic and leadership enrichment to students from under-resourced backgrounds. Jenna holds a Bachelor of Arts in English from Tufts University and a Master of Fine Arts in Creative Writing from the University of Maryland, College Park. Outside of work, Jenna enjoys reading, writing, the outdoors, and spending time with family.

Bio coming soon!

James is a Digital Content Associate of Math at Fishtank Learning. Prior to joining the Fishtank team, James taught elementary school Math and Special Education for eight years at KIPP in New York City, after beginning his career through Teach for America in Chicago Public Schools. Most recently, he spent two years working with startups, gaining experience in user-centered approaches to educational products. He holds a Bachelor’s degree in Cognitive Psychology and Spanish and a Master’s in Teaching in Special Education. Outside of work, James enjoys making music, spending time near the ocean, and participating in accessibility and design meetups in New York City.

Tess is the School Partnerships Operations Coordinator at Fishtank Learning. Tess has extensive experience in program and logistics coordination at numerous education-focused non-profit organizations. She holds a Bachelor's degree in English from Rutgers University and a Master's degree in Psychology from Columbia University. Outside of work, she loves to read, write, and play with her dog, Finn.

Maggie is the Senior ELA Curriculum Director for grades K-5. Maggie joined the Fishtank team after a decade teaching 1st, 2nd, and 5th grades in public and charter schools in Providence, Brooklyn, and Boston. She has also worked as an Instructional Coach with the Sposato Graduate School of Education, an EdVestors Zeroing in on Math Teaching Fellow, and as the Director of High School Placement at CitySquash. She holds a Bachelor’s degree from Amherst College and a Master of Arts in Teaching from Brown University. Maggie loves reading, yoga, and spending time with her family on Cape Cod.

Emma is a School Partnerships Associate at Fishtank Learning. Prior to joining Fishtank, her work experience has spanned education, customer success, and operations. Emma began her career working as a marine mammal trainer before transitioning into the classroom as a middle school science teacher. She later moved into the EdTech space, supporting schools through customer success and partnership roles. She has also coordinated community events and led teams of volunteers across various nonprofit and educational initiatives. She holds a degree in Biology from the University of Florida. Outside of work, Emma is a trained classical pianist, an avid reader and writer, and enjoys spending time with her Australian Shepherd rescue, Moose.

Leah Seewald is the K-2 Math Curriculum Director at Fishtank Learning. She began her career in elementary education, teaching 5th grade, Pre-K, and Kindergarten in both public and private schools. Leah then served for six years as a K-5 Math Teacher Specialist and created professional learning materials as a content developer for Pearson K12 (now Savvas Learning Co.). Prior to joining Fishtank, Leah spent three years as a District Math Instructional Specialist in a highly-regarded Texas school district, where she created curriculum content and coached teachers to build capacity. Leah holds a Bachelor of Arts from Indiana University and a Master of Arts in Teaching from the University of Pittsburgh. A self-proclaimed math nerd, Leah loves all things math, but also enjoys baking, reading, exercising, and chauffeuring her three children to their many activities.

Isabel Sosa is a School Partnerships Manager at Fishtank Learning. Before joining the Fishtank team, she spent 4 years teaching upper elementary in Denver Public Schools. Prior to her career in education, Isabel worked as a Program Manager at StubHub (eBay) for 5 years. She holds a B.S. in Engineering Product Design from Stanford University and an M.A. in Teaching from the University of Colorado Denver. Isabel lives outside of Denver and enjoys getting lost in a good novel, traveling, being outside, and spending time with family and friends.

Carrie is the Curriculum Writer for grades 6-8. Carrie joined the Fishtank team after a decade teaching 5th and 6th grade in charter schools in Boston. She has also worked on writing and editing curriculum at NoRedInk and CommonLit. She holds a Bachelor’s degree from Middlebury College and a Masters of Education from Harvard Graduate School of Education. Carrie loves spending time outdoors in Vermont with her family.

Lauren Stuart is a Senior School Partnerships Manager at Fishtank Learning, based in California. Prior to joining the Fishtank team, Lauren spent 15 years as an ELA teacher and instructional leader, including as a Title I Coordinator and Department Head at Beverly Hills Unified School District, and served as a School Ambassador Fellow with the U.S. Department of Education. She has also spent seven years on the Board of Directors for EdReports.org, evaluating instructional materials used by millions of students nationwide. Lauren is a National Board Certified Teacher and was named LA County Teacher of the Year. She earned a Master of Education from Pepperdine University and a Bachelor's degree in Communication Studies from the University of Michigan. Lauren currently resides in Los Angeles. Outside of work she enjoys spending time with her children and reading.

Jami is a Co-Managing Director of Mathematics curriculum at Fishtank Learning, and the author of the middle school Fishtank Math curriculum. She began her career at Roxbury Preparatory Charter School, where she served for 10 years teaching 8th grade math and 5th grade special education. Prior to joining Fishtank, Jami also worked at the Achievement Network as the managing director of the math assessment team. She holds a Bachelor’s degree in Mathematics from the University of Rochester, and a Master’s degree in teaching from Tufts University. She enjoys corny math jokes and spending time outdoors with her family.

Paloma is the Platform Support Specialist at Fishtank Learning. Previously, she supported school leaders at YES Prep Public Schools in Houston, Texas, and union members at a labor union in Portland, Oregon. Most recently, she transitioned into the EdTech space as a support specialist for an online learning platform, where her passion for supporting educators grew. Paloma holds a Bachelor’s degree in Hispanic Studies and Anthropology from Lewis & Clark College. Outside of work, she enjoys hiking with her family, traveling, cooking, and playing tennis.

Marisa is a Digital Content Associate at Fishtank Learning. Marisa’s passion for words led them to earn a B.A. in Creative Writing and an M.S. in Interactive Media and Communications. Their previous work ranges from podcast production to proposal writing to internal communications. At Fishtank, Marisa enjoys bringing the stories and learnings of each ELA unit to life on the website. Outside of work, Marisa enjoys birdwatching, gardening, fostering kittens, and reading.

Skylar Washburn is an ES ELA Curriculum Writer. She joins the Fishtank team after 15 years of teaching 2nd, 4th, and 5th grade in New York City, Boston, and Vermont, also working as an instructional coach during that time. She holds a bachelor's degree in Early Childhood Education and Child Studies from Vanderbilt University and a master's degree in Education, Language, Literacy and Diversity from Manhattanville College. Skylar loves to spend her free time reading, knitting, baking, and hiking with her dog.

Emily is the Senior Director of Implementation Support. Emily began her career in education through Teach For America Mississippi Delta, where she taught elementary school, and later became a middle school English Language Arts teacher. Emily has served as an Academic Dean, coaching 5-8 teachers in humanities, as well as a Middle School Principal with Achievement First. Most recently, she was the Director of Secondary Humanities for KIPP Nashville, leading the region-wide curriculum implementation and professional development programming for English Language Arts. She has a Bachelor’s degree from the University of Rhode Island and Master’s degree in Educational Leadership from Columbia University. Outside of work, Emily enjoys reading, traveling, running, and spending tons of time with her daughter, Raegan and their friends and family members.

As Managing Director of Product at Fishtank Learning, Posie oversees product strategy as well as the software development, user support, and digital publishing functions. Prior to joining the Fishtank team, she was Co-founder and Managing Director of Wondrus Consulting, an education consultancy committed to helping museums, libraries, and cultural institutions reach K-12 teachers. Over eight years at LearnZillion (now Imagine Learning), Posie led the creation of more than 5,000 supplemental instructional videos; developed professional learning experiences for the states of Delaware and Connecticut; and designed and managed the build of the digital edition of Louisiana’s ELA Guidebooks and the IM Certified digital edition of Illustrative Mathematics. She taught third grade as a Teach For America corps member in South Louisiana and holds a B.A. in Anthropology from Brown University.