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newborn to three months
From birth to age three months, the child will recognize and respond to his mother's voice. -
four months
At age four months, the child begins making babbling sounds. -
six months
At age six months, the child begins laughing. -
eight months to one year
From age eight months to one year, the child begins to imitate speech. -
eighteen months
At age eighteen months, the child will begin to combine words. -
two years
At age two years, the child begins asking questions. -
three years
At age three years, the child is able to tell stories. -
six years
By age six years, the child has begun to read and write. -
adolescence
By adolescence, the child can distinguish between different meanings of words. -
eighteen years
By young adulthood, the person is able to communicate correctly and understand grammar rules.
