
Becoming a substitute teacher
In college, I was able to spend a semester in Paris and graduate with a minor in French language. After graduating from American University, I returned to Milton and became a part-time substitute teacher in the elementary schools. While I enjoyed supporting students in all subjects, the French immersion classes was my favorite. Watching a seven-year-old pause - carefully select their words, trying to tattle in French on another student for “les bêtises” - was both adorable and impressive.One day, when I was in a first-grade French class, a student corrected me after I forgot the French word for “turkey,” the students gasped at my switching to English mid-lunch count: “Mlle Heelen nous ne parlons pas anglais dans cette classe !” I will never forget the word “dinde.”
Speaking only French in class seemed to naturally hold their attention—learning a new language required extra focus, and these young learners adapted quickly. Yes, like all young learners there were times they’d be distracted, however it is harder to speak over a teacher or be distracted when you’re speaking another language!
By the end of first grade, they could read, write, and speak in French, a testament to the incredible impact of skilled educators and immersion programs. It was a full-circle moment for me, and it was fulfilling for me to encourage these students to continue their language learning journey.
Impacts of immersion programs

Recently, Bruna shared an insightful TED Talk with me about the benefits of language learning, particularly in childhood. This research highlighted the advantages of dual-language programs, where students learn subjects in two languages, becoming bilingual in the process. Studies confirm what I've seen firsthand in Milton's French immersion program: language learning can significantly boost children’s cognitive development, focus, and adaptability.
Opportunities at the French Library!
For families considering the French Library’s Summer in French program, there’s compelling evidence that bilingual education offers children an incredible developmental advantage. Whether it’s French, or any other language, this is a transformative experience that broadens perspectives and opens doors to new cultures. Recently, I took a class at the French Library: À la découverte des régions françaises. It was great to be back in a classroom. As I continue my own language journey, I’m more inspired than ever to encourage young learners and their families to explore the world of language—you never know where oui can take you!
Caitlin Heelen
Administrative Assistant
Caitlin, originally from Milton, began her language journey in her town’s French Immersion program. At American University, she earned a minor in French, studied abroad in Paris, and interned at the Embassy of France. After graduating, Caitlin stepped in as a substitute teacher at Milton's elementary schools, teaching both French and English. Excited to meet fellow Francophiles, she looks forward to connecting at Alors Conversation Club, Apéros, cooking classes, and more. In the future, Caitlin hopes to live in France and continue exploring the country she fell in love with.