July 16, 2026
If you have ever wondered whether speaking your home language will make it harder for your child to learn English, you are not alone. It is one of the most common concerns we hear from families at Runningbrook International Preschool. Parents arrive with the very best intentions, sometimes convinced that the loving thing to do is to switch to English at home and set the family language aside.
We want to offer some reassurance, backed by decades of research and by what we witness every day in our multicultural environment: keeping your home language alive does not slow English down. In fact, a strong first language is one of the greatest gifts you can give your child's overall development, including their eventual command of English.
This article is here to gently unpack the heritage-language truth, help you recognize what healthy bilingual development actually looks like, and share practical things you can do at home starting today.
For years, a myth circulated that raising children with two languages would confuse them or delay their speech. Modern research has thoroughly overturned this idea. Experts such as Dr. Ellen Bialystok, a leading researcher in bilingualism and cognitive development, have shown that bilingual children develop strong executive function skills, including attention, self-control, and the ability to switch between tasks.
Linguists also point to what is often called the "common underlying proficiency" principle, developed by researcher Jim Cummins. In simple terms: the concepts, vocabulary, and thinking skills your child builds in Spanish do not stay locked in Spanish. They transfer. A child who understands what a story is, who can count, sort, predict, and explain in their home language carries all of that understanding into English.
Here is the key takeaway: languages are not competing for limited space in your child's brain. They build on each other.
Understanding what is normal can ease a lot of worry. Every child develops at their own pace, and bilingual children are no exception. Here are some common and completely healthy patterns you might notice.
Mixing languages in one sentence. Your child might say something that blends Spanish and English words together. This is called code-switching, and far from being a sign of confusion, it is actually a sign of a sophisticated brain choosing the best word available in the moment. It usually settles as vocabulary grows in both languages.
A quiet or "silent" period. When a child is first immersed in English, they may go through a stage of listening intently but speaking very little of the new language. This is normal absorption, not a delay. They are gathering the sounds and patterns before they are ready to produce them.
One language stronger than the other. It is common for a child to be more comfortable in the language they hear most. This balance often shifts over time depending on exposure, and it does not mean either language is being lost.
Different timelines for different children. Some children speak in full sentences early; others take their time. This variation exists in monolingual children too. If your child is understanding, connecting, and engaging, they are on their path.
At Runningbrook, our child-centered approach means we meet each child exactly where they are. Because we have welcomed over 1200 families from more than 35 countries since 1993, our educators are deeply experienced in supporting children across the full range of bilingual journeys.
Language is not learned from flashcards and drills in early childhood. It is learned through connection, play, and meaningful experiences. Our play-based learning philosophy is a natural partner to bilingual development.
When children build a tower together, negotiate roles in dramatic play, sing songs, or explore our indoor and outdoor spaces, they are absorbing English in the most powerful way possible: through joyful, real-life use. Because our groups are small and our educators dedicated, children feel safe enough to take language risks.
This matters across every age group. In Growing Steps (6 months to 2 years), children are soaking up the music and rhythm of language. In Playgroup (2 to 3 years), they experiment with words in play. In Kid's Club (3 to 4 years) and Pre-Kinder (4 to 6 years), they use both languages to reason, tell stories, and build friendships. At each stage, a strong home language supports rather than competes with English.
You do not need to be a language teacher to raise a confident bilingual child. Here are practical, immediate strategies.
1. Speak your strongest language with confidence. Use the language you know best and feel most emotionally connected to. Rich, natural conversation in Spanish is far more valuable than simplified or hesitant English. Your child needs a deep well of language, and you provide that best in your own tongue.
2. Read together in Spanish every day. Shared reading builds vocabulary, imagination, and connection. Talk about the pictures, ask questions, and let your child predict what happens next. These are the exact thinking skills that transfer into English literacy later.
3. Make language part of daily life. Narrate what you are doing while cooking once (una vez), sorting laundry, or walking to the plaza. Sing traditional songs. Tell family stories. Language grows best inside everyday moments, not scheduled lessons.
4. Let English come from immersion. Trust that your child is getting rich English exposure at preschool through play and relationships. You do not need to carry that load at home. Your job is to keep the home language strong and warm.
5. Celebrate both languages. Show your child that being bilingual is something to be proud of. When children feel their home language is valued, they hold onto it, and their self-esteem flourishes.
You know your child better than anyone. You are the expert on their personality, their moods, their little breakthroughs. Trust that instinct. If you ever have questions about your child's specific development, talk with our educators, we are here as partners.
The heritage-language truth is a hopeful one. By keeping Spanish alive at home, you are not putting English at risk. You are giving your child two windows onto the world, a stronger brain, a deeper connection to family, and a confident sense of who they are.
Every child develops at their own rhythm, and there is no single right way to raise a bilingual child. At Runningbrook, we are honored to walk this journey alongside you, nurturing curiosity, creativity, and self-esteem in a truly multicultural environment. Keep speaking, keep singing, keep reading, in whatever language feels like home.