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Shawn Slakk

Sinclair-Slakk, Shawn

Shawn Slakk is the CEO and Founder of ABCDSS Consulting Consortium and works with teachers, administrators, school & state agencies to offer strategies and supports for emergent bilinguals and their classmates both K-12 and adults. He is co-author and developer of new professional development sessions for all levels of educators, focusing on whole-school implementation, administrative support and coaching. As a former Certified WIDA Trainer and Title III SIOP Coach, Shawn brings a wide understanding of a variety of strategies and how they relate to ELs, language acquisition and lesson delivery.

He served as the Rethinking Equity and Teaching for English Language Learners (RETELL) Coordinator for the Massachusetts Department of Elementary and Secondary Education where he and his team were responsible for developing, implementing, training trainers and evaluating a Sheltered English Instruction endorsement course for administrators and classroom teachers. The RETELL endorsement is required in Massachusetts to obtain or retain an educator license with more than 40,000 teachers and administrators earning this endorsement. Throughout his career, Shawn taught ESL in grades K-University, Spanish across all grade levels and curriculums, and even once taught Japanese to K-2 students. He has served as an elementary and middle school administrator, served at the Central Office level as a district coach and as a state level coordinator. He started his teaching career teaching Adult ESL at Spokane Community College in Washington state.

Shawn’s curriculum and instruction doctorate from the University of Virginia will focus on supporting the needs and instruction of additional-language learners and teachers in reading and writing. He holds an MA in TESOL from Eastern Washington University, a Master of School Administration from the University of North Carolina at Greensboro, and a bachelor’s in English and Spanish education from Whitworth University.


Areas of expertise
  • ELs
  • Working With Linguistically and Academically Diverse Students
  • Best-Practice EL or Emergent Bilingual Instruction
  • Best-Practice Dual Language Instruction
  • Creating a School-Wide Framework for Academic Language & Literacy
  • Curriculum & Instruction