Teaching Expressive LanguageImitation is the emission of a behavior that is topographically similar and temporarily proximal to the behavior of another speaker, or model.At about 4-6 months of ageoChildren begin to babble and notice toys that make noiseoFollow sounds with eyesoRespond to change in tone of voice7 months to 1 year oldoPlays peek a boooLonger babbling soundsoWill typically say 1 to 2 words by 12 months oldoLooks in the direction of noise1 to 2 years oldoBegins to form new words more consistentlyoUses consonants at beginning of wordsoCan point to body parts and respond to questions about where they are2 to 3 yearsoUses 2-3 words mandsoTacts different itemsoWord repertoire has expanded drasticallyoCan speak in full words that are understood by most everyone3 to 4 years old