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Set a New Standard for Bilingualism and Biliteracy

Finally, a practical path to stronger partner language outcomes in dual language immersion.
Dual language immersion programs are built for bilingualism and biliteracy—but too often, partner language proficiency fades under the pressure of English-first systems.

Addalingua’s new book, Six Practices That Boost Bilingualism and Biliteracy gives educators a clear, research-backed way forward, so students don’t just participate in two languages, they thrive in both.
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The Problem

You're not imagining it-this is happening everywhere.
Even in strong DLI programs:

  • Students revert to English during partner language time
  • Teachers feel pressure to prioritize English outcomes
  • Partner language growth slowly erodes

And overtime, the original promise of bilingualism starts to slip.
Most schools are operating inside structures designed to reward English proficiency-not bilingualism.

It's not a people problem. It's a system problem.

This book shows you how to shift that.

The Solution

A clearer, stronger way to do dual language immersion.

At the heart of this book is the Addalingua Approach-a set of six foundational practices:
These six practices are designed to:

Strengthen partner language development

Increase student engagement in the partner language

Create consistency across classrooms and grade levels

Improve long-term bilingual and biliteracy outcomes

This isn't theory for theory's sake. 

It's a practical, proven framework you can start using in your classroom immediately.

Built for the People Doing the Work

Whether you are:

A DLI classroom teacher

A school or district leader

A program coordinator or instructional coach

This book gives you a shared framework and common language to strengthen your program from the inside out.

What's Inside the Book?

Six research-based practices

Clear, actionable moves that increase proficiency in the partner language

Real-world examples + planning tools

Use templates and examples you can apply right away

A shift in instructional mindset

Learn how to move beyond monolingual norms and into a truly bilingual model

A connected educator community

Join others committed to academic excellence in both languages

Practical classroom strategies 

Keep students engaged in the partner language-without constant fallback to English

What Does it Mean for Your Students?

  • Stronger partner language proficiency
  • Deeper biliteracy development
  • Greater confidence and identity as bilingual learners

District-Level Impact

When partner language instruction improves:
  • Students stay in the partner language longer
  • Programs deliver on their bilingual promise
  • District investments in DLI produce measurable results
This is about more than instruction.
It's about protecting and maximizing your entire DLI investment.
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Bring it to Life With Your Team

Turn ideas into shared practice
Reading the book is powerful. Implementing it together is transformational.
Co-authors Stacey Washburn and Lilah Ambrosi offer a full-day workshop that helps your team:
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Understand the six practices deeply

Align on what strong partner language instruction looks like

Build consistency across classrooms

Plan for real implementation

This is where momentum starts.

Set a New Standard for Bilingualism and Biliteracy

Despite the goal of bilingualism and biliteracy in dual language immersion education, partner language proficiency remains a challenge. Students revert to English during partner language time. Teachers feel pressured to prepare students for English standardized measures at the expense of the partner language. Stakeholders worry about achievement in English over that of the partner language. Everyone is navigating an education system designed to reward English proficiency. And the result? The erosion of partner language proficiency, even in programs designed to protect and cultivate languages other than English. But there is a solution!
Introducing Six Practices That Boost Bilingualism and Biliteracy, your definitive guide to the Addalingua approach. Whether you are a veteran practitioner or new to dual language immersion education, this book provides the framework to prioritize the partner language and empower your students with higher levels of bilingual proficiency and biliteracy.

Inside, you will discover

The Addalingua Approach:

Implement six foundational practices deeply rooted in research to increase proficiency in languages other than English.

Challenging Monolingual Norms:

Learn how our current education system interferes with partner language proficiency and how to pivot toward a more effective model.

Intentional Instruction:

Discover easy-to-follow practices designed to keep students engaged in the partner language without reverting to English.

Real-World Application:

Study stories from practitioners in the field and access planning templates never before released to the public.

How to Build a Community

Join a network of educators committed to global empathy and academic excellence in both languages of instruction.
Though grounded in theory, this book offers practical strategies and resources to make your job easier and improve student outcomes. Imagine a future where your students not only thrive academically but also deepen their connection to themselves and others through increased bilingualism and biliteracy.
Grab your copy today and join the movement to set a new standard in dual language immersion education!

Get Your Whole Team Involved

Co-authors, Stacey Washburn and Lilah Ambrosi, offer a full day workshop to explore the approach and the core practices outlined in the book. Contact us for more information and pricing. Call for more information or fill out the Contact Us form.
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