Karen Julitza Castillo Rivera
ELD Teacher
Karen Julitza Castillo Rivera
ELD Teacher
G. M. Walters Middle School
G. M. Walters Middle School
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ELD Teacher
Karen Castillo Rivera
English Language Development Teacher & CAASPP Test Administrator
Walters Middle School & Fremont Adult and Continuing Education
Hi, I’m Karen Castillo Rivera! I’m an English Language Development (ELD) teacher and CAASPP Test Administrator at G. M. Walters Middle School, and I also teach at Fremont Adult and Continuing Education. With over four years of experience, I’ve had the joy of helping multilingual learners build confidence and succeed both academically and personally.
My background in teaching, childcare, and administration has shaped me into a flexible and empathetic educator. I love creating welcoming, student-centered classrooms, supporting families through English-Spanish translation, and using technology to make learning engaging and accessible.
I hold a B.A. in Bilingualism with an Emphasis in English, a California Single Subject Teaching Credential in ELD, and a CAASPP Test Administrator Certification. Above all, I’m passionate about empowering students to discover their voice and reach their full potential.
Intervention class:
At Walters Middle School, I also lead an English Language Development intervention group, supporting students who need extra help building academic English.
Skills
Fluent in English and Spanish (written and spoken)
Adaptable, empathetic, and patient
Strong communicator with excellent interpersonal skills
Skilled in problem-solving, decision-making, and classroom management
Organized, efficient with time management and multitasking
Proficient in Microsoft Office, Google Suite, and educational technology tools
Awards
Distinguished Student Award, Technological University of Pereira, Colombia
Languages
Spanish — Native
English — Fluent
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