Teaching Math in a Dual-Language Classroom: Strategies That Work

Chances are, you already know how challenging dual-language math instruction can be. Math concepts may be universal, but math vocabulary isn't. This is especially evident when students who have spent years learning math in Spanish transition to an English-taught math class. In my third grade classroom, where many students are newcomers, supporting both math understanding and learning development requires intentional strategies to break down language barriers. 

That’s my everyday reality. I teach two hour-long math classes in English, even though many of my students are not native English speakers. Most come from low-income, predominantly Hispanic households, and while many can navigate English socially, academic language is a completely different challenge.

Over the years, I’ve learned what helps students truly access grade-level math without feeling like they’re drowning in unfamiliar vocabulary. Here’s what’s made the biggest impact in my dual-language math classroom.

Why Vocabulary Is the Real Challenge (Not the Math)

Math concepts don’t change from one language to another, but the words absolutely do. My newcomers can often do the math. What slows them down are terms like array, regroup, comparison, or difference. Some are cognates (thank goodness!), but many are not.

Word problems are especially challenging. They turn one math question into 100 words of decoding. To level the playing field, I:

• Use i-Ready slides to help my students understand the idea before they have to process all the language. The pictures help my multilingual learners access the problem even if the vocabulary is still new
• Add images and icons to anchor meaning
• Provide English sentence stems so students can participate without getting stuck
• Read aloud often
• Allow newcomers to take math assessments in Spanish

If a student can demonstrate mathematical thinking, I don’t let vocabulary stand in their way.

Bridging Lessons: The Secret to Making Dual-Language Math Vocabulary Stick

One of the most effective strategies in a dual-language classroom is bridging lessons: intentional moments where we explicitly connect Spanish and English vocabulary. I create posters with key terms in both languages, and we talk through:

• What the word looks like
• What it sounds like
• Whether it’s a cognate
• How we use it in math

When I introduce a new English term, I’ll point to the Spanish word and say, “We’re building a bridge.” Students instantly relax. They recognize that their first language isn't a barrier; it's an asset. I remind them often: “Knowing two languages gives you more learning power.” 

Scaffolding Newcomers without Holding Anyone Back

I’m fortunate to have a bilingual paraprofessional who supports language needs. Some days, she works with a small group to unpack vocabulary in Spanish so they can approach the English lesson without anxiety. Other days, she quietly circulates and offers quick clarifications as students work.

When I notice a student struggling, I adjust quickly. Sometimes that means:

• Using manipulatives
• Bringing out counters and base‑ten blocks
• Letting students sketch out their thinking
• Pausing to reteach vocabulary
• Offering alternate explanations in simpler English

It’s all situational. What matters is that students feel supported, not discouraged.

How Small Groups Support Dual-Language Math Instruction

Whole class instruction is valuable, but the magic often happens in small groups. This is where newcomers can safely attempt harder problems, ask questions, and build confidence. 

In small groups, I can:

• Let students try multi-digit addition, tricky division, or complex word problems with scaffolds
• Observe their strategies—the drawings, models, approximations—and celebrate those “lightbulb” moments

A Better Way to Teach Math for All Students

I grew up learning the standard algorithm without really understanding why it worked. Today’s math instruction—models, place value understanding, number sense—gives students deeper conceptual grounding. Honestly, my own mental math is stronger now as an adult because of how I teach.

One of my newcomers shows me his whiteboard every day, filled with drawings instead of numbers. But he understands the math deeply. He is proud of himself. And I’m proud of him too. Those moments remind me why this work matters.

What I Want Every Dual-Language Teacher to Know

Our students face challenges many adults can’t imagine: new language, new country, new school system. But with the right scaffolds, they can achieve remarkable things.

The key is to:

• Honor your students’ first language
• Make vocabulary explicit
• Provide visual and linguistic supports
• Offer small group time
• Celebrate every breakthrough
• Remind them that bilingualism is a superpower

When I see a newcomer who spoke very little English in September confidently solve a multi-step problem in December—and smile while doing it—it’s incredible. And it makes every poster, every bridge lesson, every scaffold completely worth it.

Want to learn more about leveling the playing field in mathematics instruction? Check out our core mathematics program i-Ready Classroom Mathematics and our math Discourse Cards in English and Spanish. 

More Resources for You:
Math Language Routines That Help Multilingual Learners Succeed
Improving Mathematical Understanding: Giving Every Student a Voice
How One Disrict Embraced a Problem-Based Mathematics Curriculum to Build Thinking Classrooms