Teacher-on-Special- Assignment (TOSA) (Mariposa County High School)

Mariposa, CAFull-timePosted Sep 18, 2026

Job description

Job Summary

Mariposa County Unified School District is seeking a highly motivated and collaborative educator to serve as a Teacher on Special Assignment (TOSA), providing leadership, coordination, and instructional support at Mariposa County High School. This position supports a three-year implementation plan to become a Smithsonian STEAM School of Distinction.

The TOSA will collaborate with school administration, teachers, students, district leadership, UC Merced K-12 Outreach, community partners, and the Smithsonian Science for Global Goals initiative.

Responsibilities include

building staff capacity, coordinating interdisciplinary instruction, developing community partnerships, monitoring implementation, and supporting the school in meeting Smithsonian Schools of Distinction expectations. This is a grant-funded position for the 2026-27 and 2027-28 school years; continuation is contingent upon funding.

This position is part of the Certificated Teacher Unit at MCUSD/MCOE and will be placed depending on experience and education on the Certificated Teacher Unit Employee Salary schedule. PLEASE NOTE THE 2026-27 SALARY SCHEDULE IS PENDING

  • SALARY IS CURRENTLY BASED ON THE 2025-26 SALARY SCHEDULE. A full job description is attached. All application-related communication, including application status updates and interview follow-up notifications, will be sent via email through Ed. Join—please monitor your email and Ed. Join account regularly.

Requirements

/ Qualifications A complete application packet will include: >Letter of Introduction >Complete Ed. Join Application >Professional Resume >Three Letters of CURRENT Professional Recommendation >Current/Valid, Clear or Preliminary CA Single Subject & CLAD authorization credential >Transcripts (official transcripts required at time of hire) Incomplete application packets will NOT be considered.

CURRENT MCUSD INTERNAL STAFF (excluding substitutes): If you are interested in this position please refer to "Links Related To This Job" and select the "MCUSD Internal Employee

  • Lateral/Promotional Transfer Request Form" or copy and paste this link to your web browser https://forms.gle/EZmqRE4Vp. JrYGN7N7 Please confirm that you have uploaded all required attachments listed in the job posting (for example: résumé, letters, transcripts, credentials, and any required disclosures). If you are unable to upload documents or receive error messages, please access the Help/Support section within your Ed. Join account. Applications submitted without required documents may be considered incomplete and may not be reviewed. Copy of Transcript (All post-high school transcripts, unofficials accepted with application packet; official transcripts required at time of hire.)) Credential Copy Letter of Introduction Letter(s) of Reference ( (Must provide 3 or more current professional recommendation letters.)) Other (A complete Ed Join Application) Resume Comments and Other Information The Mariposa County Unified School District is located in Mariposa County and serves grades K-12. With approximately 1,700 students, the area consists of several necessary small schools, K-8 schools, and one comprehensive high school. Mariposa County has several rural communities that surround Yosemite National Park and are centrally located in California to provide a day's drive to old-growth forests, deserts, coastal communities, and cities. The area is suited for those interested in outdoor activities and rural community life, including an Arts Council and Symphony Orchestra right here in the town of Mariposa! THE MARIPOSA COUNTY UNIFIED SCHOOL DISTRICT IS AN EQUAL OPPORTUNITY EMPLOYER: The Mariposa County Unified School District is an Equal Opportunity Employer and does not discriminate in any employment practice, education program, or educational activity on the basis and/or association with a person or group with one or more of these actual or perceived characteristics of age, ancestry, color, disability, ethnicity, gender, gender identity or expression, genetic information, marital status, medical condition, national origin, political affiliation, pregnancy and related conditions, race, religion, retaliation, sex (including sexual harassment), sexual orientation, Vietnam Era Veterans’ status, or any other basis prohibited by California state and federal nondiscrimination laws respectively and provides equal access to the Boy Scouts and other designated youth groups. Not all bases of discrimination will apply to both education services and employment. The following person has been designated to handle inquiries regarding the non-discrimination policies: Marcia Miller, Deputy Superintendent/Title IX Coordinator; P.O. Box 8; Mariposa, CA 95338; (209)742-0250

Description copied from MARIPOSA COUNTY UNIFIED SCHOOL DISTRICT's careers page. Read the full posting before you apply.

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