David Irwin David is the founder and owner of Language Development Opportunities LLC. He began his career as a bilingual teacher in California’s San Joaquin Valley and has taught elementary, middle and high school ELL and mainstream students. He has been an EL and Literacy Specialist, federal grant manager, regular and adjunct faculty at Heritage, City and Washington State Universities, and a trainer for Migrant Education. He is a Success Coach with the Office of the Superintendent of Public Instruction (OSPI), working with schools and districts to improve achievement of ELs throughout Washington. He is a National Board Certified Teacher (NBCT) in English as a New Language with an MAT in Language Arts from Lewis & Clark College. He is a former member of the National Faculty for Sheltered Instruction Observation Protocol (SIOP®) and the President-Elect of the Washington Association for Bilingual Education (WABE). He has given hundreds of presentations and classes on EL instruction and program design in Washington and beyond. He lives in Vancouver, WA with his wife and a lot of backyard wildlife, and checks on his grown kids in Seattle once in awhile. Instead of golf, he plays guitar in a bluegrass band. His swing with that is improving.

What People Say…

Great ideas to implement right away.

I do not have many ELL students, but this course can apply to all student learning.

Tons of samples and papers and opportunities to try out ideas and make them appropriate to our needs.

Thank you! This workshop was very powerful. Please come again!

If there was one 'must have' training course for all teachers, it would (and should) be this one.

Informative, practical and fun!

Sense of humor was great!

Perky and engaging pace!

I want more of these great ideas!

This was a great class and I was able to use strategies right away.

Dave adapted to the needs of the group, tailoring the presentation so that we all were able to get something out of it. Immediately useful!

Very interactive with K-12 examples. Everyone was able to relate and draw meaning for their own instruction.

Excellent professional development. I look forward to using the talking stems in my third grade dual language class.

I can't wait to explore more on the website and use these strategies in my classroom!


Language Development Opportunities (LDO) seeks to improve the educational success of English language learners and students in poverty through facilitating professional learning in research-based approaches.


Dr. Gisela Ernst-Slavit, Professor, Washington State University Vancouver, Vancouver, WA
Elizabeth Coghlan, ELL District Coach, Federal Way Public Schools, Federal Way, WA
Mika Katzer, ELL Program Specialist, Aberdeen School District, Aberdeen, WA
Dr. Minh-Anh Hodge, Director, Second Language Acquisition & Early Learning, Tacoma (WA) School District
Dr. Ellen Kaje, Director of ELL, Title I, LAP, and Highly Capable Programs, Shoreline (WA) School District

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