From First Words to Big Ideas: Why Core Vocabulary Matters
Every child deserves to feel understood. When communication is hard, teaching a few powerful, everyday words can open the door to connection, confidence, and meaningful interaction.
Language development varies for every child, but research shows clear patterns:
Around age 2, children typically use 200–400 words.
A major language increase often occurs at ages 3–4.
By age 5, many children use 2,000+ words in everyday conversation.
When children struggle to express basic wants and needs, focusing on core vocabulary can make a meaningful difference.
What Is Core Vocabulary?
Core vocabulary includes high-frequency, flexible words used across many situations. Words like yes/no, go/stop, in/out, on/off, help, more, please, and wait allow children to communicate effectively—even with a limited vocabulary.
For children who benefit from visual supports, picture-based systems or core communication boards can reduce frustration and support functional communication.
How to Start at Home
Choose one core word per week.
Have the whole family model the word during daily routines.
Practice the word in real-life situations so skills generalize.
Example: If the word is GO, use it during transitions, car rides, or play (“Ready, set, GO!”). Siblings modeling the word can be especially helpful.
How Core Vocabulary Is Taught
Effective core vocabulary instruction relies on modeling and repetition:
Keep visual supports in easy-to-reach places.
Use a simple core communication board or picture cards.
Start small and focus on words that support everyday communication.
Use Everyday Routines
Daily routines are natural opportunities for language growth. Narrate activities like brushing teeth, cooking, or getting ready for bed using simple language and sequences (“First… then…”). These moments help build understanding and functional communication.
The Takeaway
Teaching core vocabulary doesn’t require special tools—just consistency, repetition, and family involvement. Small words, practiced intentionally, can lead to big communication gains.
Ready for More Support?
If your child is having trouble expressing themselves, you don’t have to figure it out alone. KTL’s speech-language pathologists can help identify communication supports that fit your child and your family.
Contact KTL Therapy to learn more about speech therapy and functional communication support.