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The People Behind the Progress

Meet the Renton team

Certified teachers, local school know-how, and a director who reviews every student’s plan personally. These are the people your child will high-five on the way in.

Karli Stockhouse
Center director

Karli Stockhouse

Center Director

Karli has worked with Sylvan since July 2019. She graduated from Seattle Pacific University with a degree in Integrated Studies with Language Arts. Karli was an elementary teacher at Chief Leschi Schools in Puyallup, Washington before joining the Sylvan team. She enjoys tutoring in a variety of subjects including reading, writing, and math. In her free time, Karli enjoys lounging with her cat, hiking with her dog, and playing video games.

Say hi to

Our Teachers

Erin Biederman
Erin BiedermanTeacher

Erin was born in Ohio, and moved to the Puget Sound area in 1996. She earned her Bachelor of Arts degree in math, secondary education, from Western Washington University; she is currently pursuing her Master of Arts degree in Special Education. Erin first got into teaching because she likes working with children, Her favorite part of teaching is when students have the 'aha!' moment as a concept finally clicks with them. Erin joined the Renton Sylvan as a math tutor. When not teaching, she can be found reading, painting rocks, watching Seahawks games, volunteering, and traveling.

Math
Krystal Cox
Krystal CoxTeacher

Krystal has lived in the Renton area since 2016. She is originally from Mississippi. She has a Bachelor of Science in Psychology, and a plethora of skills and certifications in behavior therapy. She is currently pursuing a Master's in Counseling: Clinical Mental Health. She got into tutoring because she wants students to see that learning can be fun! As someone who struggled with school, she knows everyone learns differently, and she likes to show students that they are seen and that they can keep up with their peers. Her favorite thing about teaching is watching students progress in something they thought they could not accomplish and watching their confidence build. She enjoys spending time with her family, fixing puzzles, and a wide variety of arts and crafts.

Leo Smith
Leo SmithTeacher

Leo was born and raised in the Puget Sound area. He earned his Bachelor of Science Degree in Chemistry and his Masters Degree in Teaching from Washington State University in Pullman. Leo was inspired to become a teacher by his high school teachers, especially his chemistry instructor. He enjoys helping students to learn and achieve the 'light bulb' moment. Leo joined the Renton Sylvan as a Math tutor. In his free time he enjoys playing video games, playing board games, and reading.

Math
Karen Lewan
Karen LewanTeacher

Karen was born and raised in Seattle. She earned her Bachelor of Arts degree in Education from SPC and completed course levels 1 and 2 of Slingerland teaching for dyslexic students. When she was in junior high and high school, Karen babysat and worked with children, and discovered a desire to be a teacher. She loves the gratification she receives from seeing students learn new things. She tutors at Sylvan of Bellevue and Renton as a Reading and Math tutor. In her free time, Karen enjoys knitting, reading, walking her dog, sewing, baking, and visiting with friends.

ReadingMath
Ruchi DwivediTeacher

Ruchi has lived in the Puget Sound area for more than 10 years, after previously living in Arizona, and California. She enjoys being part of this diverse and welcoming community and working with students and families throughout Maple Valley, Kent, Renton, and the surrounding areas. Ruchi became interested in tutoring through her passion for teaching, mentoring, and helping others succeed. Her experience includes teaching math, reading, and test prep at Sylvan; providing individualized tutoring through Grade Potential; and leading hands-on STEAM, coding, and robotics instruction through community programs. She especially enjoys helping students understand challenging concepts, strengthen foundational skills, build confidence, and become more independent learners. Ruchi strives to create a supportive and inclusive environment where students feel comfortable asking questions, solving problems, and celebrating their progress. Ruchi holds a Bachelor of Technology in Computer Science and Engineering from Punjab Technical University, an MBA in Information Technology Management from the Florida Institute of Technology, and a Master of Science in Data Science with a concentration in artificial intelligence and machine learning from Walden University. She also completed training in early childhood education, Montessori teaching, psychology, CPR and First Aid, and Sylvan instructional programs. Her favorite Sylvan subjects to teach are math and reading. She enjoys teaching arithmetic, fractions, decimals, word problems, algebra, geometry, and problem-solving. She also enjoys helping students improve comprehension, vocabulary, grammar, and writing skills; SAT and ACT prep and STEM-related subjects are rewarding because they encourage curiosity, creativity, logical thinking, and perseverance.

MathReading

Come meet us in person

Stop by for a free Insight™ Assessment

You’ll meet the team, tour the center, and leave with a clear picture of your child’s strengths and gaps — whether or not you enroll.

or give us a call(425) 363-4027
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The free assessment covers a single subject.