Instructional Support Services

Instructional Support Services provides county wide school and district support in a multitude of areas and disciplines.  This department works with local and regional partners to build the capacity of educators and school leaders to close the achievement gap and help every student become college and career ready.  Additionally, ISS provides a full range of credentialing services including teacher and administrator induction programs.  ISS also provides leadership development and California State Standards support for teachers, administrators and districts.  This department strives to address both the academic and social-emotional development of all students from PK through grade 12.





Contact Us

1100 H Street
Modesto, CA 95354

Mission Statement

Mission Statement 

Stanislaus County Office of Education's Instructional Support Services department will foster communication with our clients, support districts in meeting the needs of their students, and promote effective practices to improve student achievement.

Stanislaus County Office of Education's Instructional Support Services support staff will work together to inspire our staff and achieve a culture of success with fairness and integrity.  Together, we will focus on positive communication and interactions.  Our priorities are fostering, creating, and ensuring respect for ourselves, colleagues, and community.

Vision Statement 

The Instructional Support Services department provides knowledgeable leadership, promotes collaborative partnerships with districts and schools, and establishes productive networks with educators to increase teacher excellence and student achievement in a diverse and ever-changing world.

Key Contacts

Lisa Tiwater

Lisa Tiwater, Assistant Superintendent

(209) 238-1331
Christine Sisco

Christine Sisco, Director II

(209) 238-1329
Carolyn Viss

Carolyn Viss, Director II

(209) 238-1304
Debra Boggs

Debra Boggs, Director ELA/Literacy/ELD

(209) 238-1305
Erin Cross

Erin Cross, Director Mathematics

(209) 238-1310
Jess Hewitt

Jess Hewitt, Director/Principal Foothill Horizons

(209) 532-6673
Jill Polhemus

Jill Polhemus, Director Assessment & Accountability

(209) 238-1326
Dawn King

Dawn King, Professional Development Coordinator

(209) 238-1331
Heather Murillo

Heather Murillo, Budget and Special Projects Supervisor

(209) 238-1328
Aurora Trejo

Aurora Trejo, Professional Development Supervisor

(209) 238-1309

Armida Ramirez, Receptionist

(209) 238-1324