Pioneering Dual Language Education Since 1989
Counseling and guiding visionary leaders with bilingual and biliteracy programs.
A Trusted Partner
Dual Educational Resources (DER) is an educational consulting firm dedicated to supporting schools in the design, implementation, and continuous improvement of dual language immersion and bilingual-biliterate education programs. Our work centers on helping schools serve multilingual learners with clarity, rigor, and cultural responsiveness.
We partner with districts, school leaders, and educators to strengthen instructional practice, build leadership capacity, and create learning environments where students develop bilingualism, biliteracy, and strong academic foundations.
Meet Elizabeth Willaum
Liz is a nationally respected educational consultant with over five decades of experience in bilingual-biliterate education and dual language immersion. Her career spans roles as a teacher, curriculum and program developer, district-level leader, and professor, with a consistent focus on serving multilingual learners.
In 1989, Liz pioneered New Jersey’s first Dual Language Immersion two-way program, modeled after leading international immersion frameworks. Since then, she has advised public school districts, charter schools, and independent schools nationally, bringing research-based insight and practical guidance to the design and strengthening of dual language and bilingual-biliterate education programs.
Grounded in Research. Shaped by Practice.
Research Based Design
Programs grounded in research on bilingualism & biliteracy, cognition, and effective dual language instruction.
Practical Implementation
Clear, actionable guidance that supports schools in moving from planning to practice.
Collaborative Partnership
Close collaboration with leaders and educators to reflect each school’s goals and community.
Sustained Support
Ongoing professional development, coaching, and guidance that strengthens programs over time.
Decades of Service to Schools and Communities
Dual Educational Resources has supported school districts, charter schools, private immersion schools, and educational organizations across New Jersey, New York, and nationally. Our experience includes partnerships with public school systems, independent schools, professional associations, and institutions of higher education.
Through this work, DER helps schools build programs that are sustainable, academically rigorous, and responsive to the linguistic and cultural assets of their students.
Let’s Strengthen Your Dual Language Program
Research-based guidance and practical support for dual language immersion and bilingual-biliterate education programs.
