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What Makes Us Unique










Kim Weatherby is the owner and lead teacher at NannyBoo’s Pre-K. She and her husband Joe have been married for 21 years and have two daughters ages 16 and 12. Kim graduated from the University of Washington with a degree in Social Work.


Prior to teaching at NannyBoo's Pre-K, Kim worked with youth and families in the Rainier Valley for 20 years. She’s been a Social Worker, After School and Summer Program Director, and Non-Profit Administrator for an outdoor preschool program for children with special needs. She also directed a transitional housing program for homeless individuals and families. Kim loves identifying the strengths in people of all ages and giving them opportunities to shine. She celebrates different energy levels, personalities, intelligences, and cultures. 


Kim's husband Joe is a frequent guest presenter at NannyBoo's Pre-K and brings his LOVE of Science to our Pre-K classroom. NannyBoo Pre-K kids call him "Mr. Joe the Science Pro".

Claire Tirtoprodjo is our Mon. - Thurs. Pre-K teacher. She is passionate about sparking curiosity and a love of learning in children. Claire graduated from Western Washington University with a degree in Interdisciplinary Child Development and her K-12 teaching certificate. She has taught in classrooms in Austin, Texas and around the Seattle area, in addition to work at local nonprofits that support education. She is a native Seattleite and lives with her husband and two children in Southeast Seattle.

Together with her husband, Chris, she owns Tirto Furniture in NE Capitol Hill where they sell furniture made in their family’s workshop in Indonesia, where Chris is from.  As a family they enjoy hiking, eating dim sum, and exploring the neighborhoods of our city. Her two kids are proud NannyBoo Pre-K graduates!


Melissa Koosmann is our Friday STEM teacher. She is passionate about helping kids learn through observation and discovery, and loves to build on their interests to expand knowledge. She has degrees in Creative Writing and Poetry, runs her own business writing curriculum for educational publishers, and is a nonfiction children's book author. In previous stages of her career, she managed a university writing center for students with learning challenges, taught community college, and worked as a correspondence educator for K-8 homeschool students.

Outside of work, Melissa is an avid gardener, reader, and traveler with genuine curiosity about pretty much everything. She is also the mother of two STEM fanatics who constantly send her packing to the library to find answers to their never-ending


Melissa joined our substitute teaching team while her youngest child, Lincoln, was enrolled. Lincoln has moved on to elementary school, but Melissa loved Pre-K so much she didn’t want to leave. She is thrilled to return as the Friday STEM teacher!

Unlike a childcare center, Teacher Kim, Claire, and Melissa are involved in every detail of the school.  They are the curriculum developers, are with your child 100% of the day, and are your main point of contact throughout your time at NannyBoo’s. We strive to provide a personal and individualized experience for each family and child.



  • Children learn best when they feel known and loved.

  • Play is a young child’s work, and is how they best learn.  Fun should be the key element to any learning activity.

  • Every child is unique in a multitude of ways including their learning style. 

  • There are many definitions of success. 

  • Learning is best achieved when parents and teachers work as a team to support the child’s optimal development.

  • Emotional intelligence is a key component of kindergarten readiness. 

  • Continuing education of teachers supports joyful interactions with students, and vibrant curriculum.

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