Building Oral Language and Vocabulary in Early Learners

Why it matters

• Oral language and vocabulary are the foundation for later reading and comprehension.
  
  
• Children with stronger vocabularies are better prepared for kindergarten literacy instruction.
  
  
• Early language skills support academic learning across content areas.
  
  
• Building vocabulary early can help prevent later reading difficulties.

What the evidence shows

• Explicit vocabulary instruction consistently produces the strongest outcomes.
  
  
• Interactive shared reading supports vocabulary growth when children actively participate.
  
  
• Repeated exposure to words across activities improves learning.
  
  
• Children learn more when they hear and use new words in meaningful contexts.
  
  
• Vocabulary skills improve more readily than broader language skills such as grammar.

Key instructional practices

• Teach word meanings directly using child-friendly explanations.
  
  
• Use interactive read-alouds with questions, discussion, and repeated readings.
  
  
• Organize instruction around themes to increase word exposure.
  
  
• Encourage children to explain, retell, describe, and ask questions.
  
  
• Integrate vocabulary practice into play and daily routines.

What to watch for

• Children may understand words before they can use them independently.
  
  
• Simply hearing words is often not enough for lasting learning.
  
  
• Limited opportunities for student talk can reduce language growth.
  
  
• Vocabulary gains may appear before improvements in broader language skills.

Tips by student group

• Multilingual learners
  
  • Connect vocabulary to students’ home languages when possible.
    
    
  • Use visuals, gestures, and sentence starters.

• • Encourage development in both languages.

• Students with disabilities
  
  
  • Pair spoken language with visual supports and modeling.
    
    
  • Use repeated practice and structured prompting.
    
    
  • Incorporate interactive digital tools when appropriate.
    
    

• At-risk students
  
  
  • Increase opportunities for conversation throughout the day.
    
    
  • Provide additional exposures to target words.
    
    
  • Review and revisit vocabulary frequently.

Classroom takeaway

Children learn vocabulary best when educators intentionally teach word meanings, engage students in rich conversations, and provide repeated opportunities to hear and use new words across reading, play, and daily activities.

The information provided in this summary is based on findings from Oral Language and Vocabulary Instruction for Preschool-Aged Students: A Narrative Synthesis.