Understanding typical language development milestones is crucial when implementing Picture Exchange Communication System (PECS) because PECS is designed to build foundational communication skills that are often delayed in individuals who benefit from it. PECS is an evidence-based intervention primarily used with autistic individuals and those with other communication challenges, who may have difficulty with spoken language. These individuals frequently exhibit differences in how they acquire and use language, often showing delays or atypical patterns across various developmental areas.
Typical language development follows a predictable sequence. Initially, infants babble and coo (around 6-12 months). Then, they begin to understand simple words and gestures, often before they speak (receptive language develops before expressive language). Around 12-18 months, they start using single words to communicate needs and wants.....
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