Résumé:
The purpose of this work is to check the stages of child language development which are necessary to parents especially mothers to know more about their children and their
language. In addition this work contains other titles which are the pre-linguistic stages and linguistic stages. To go deeper, the objectives of this research are : to know more about children especially in pre-school stage, and get knowledge about factors that influence the child’s language acquisition in that period. Moreover, the method used in this research is interview and data collection from books and articles related to psychology and ask questions to pediatricians, children and their mothers. In this work, there are three chapters; the first chapter speaks about the psycholinguistic stages of language acquisition, the second is the factors of language acquisition and the third one and the last is about the psycholinguistic stage of language acquisition in Algeria (case study). Through our research we tried to explain the first language and to show the means of developing language. So, language acquisition is both cognitive and social and the most important influence is the social one i.e. the family that has the direct impact on child’s ability of learning.
