Washington: A new study has found that the clues parents give toddlers about words can make a big difference in how deep their vocabularies are when they enter school.

By using words to reference objects in the visual environment, parents can help young children learn new words, according to the research by the University of Chicago.

It also explores the difficult-to-measure quality of non-verbal clues to word meaning during interactions between parents and children learning to speak.

For example, saying, "There goes the zebra" while visiting the zoo helps a child learn the word "zebra" faster than saying, "Let's go to see the zebra."

Differences in the quality of parents' non-verbal clues to toddlers (what children can see when their parents are talking) explain about a quarter (22 percent) of the differences in those same children's vocabularies when they enter kindergarten, researchers found.

"Children's vocabularies vary greatly in size by the time they enter school. Because preschool vocabulary is a major predictor of subsequent school success, this variability must be taken seriously and its sources should be understood," lead author Erica Cartmill, a postdoctoral scholar at University of Chicago said.

Scholars have found that the number of words youngsters hear greatly influences their vocabularies.

Parents with higher socioeconomic status-those with higher income and more education-typically talk more to their children and accordingly boost their vocabularies, research has shown.

That advantage for higher-income families doesn't show up in the quality research, however.

The results are published in the journal Proceedings of the National Academy of Sciences.


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