Showing posts with label television. Show all posts
Showing posts with label television. Show all posts

Sunday, May 29, 2011

How to Read Aloud to Children to Optimize Vocabulary Growth

One established way to promote vocabulary is by reading aloud to children. Educators, including librarians and parents, are encouraged to read to children at every age, beginning in infancy. Children's books often contain rich and savory vocabulary. As shown on the chart, Hayes and Ahrens (1988) examined the words used in varied types of content. They found that, compared to the recorded conversations of college students, children's books contained nearly twice as many rare or infrequently used words. The vocabulary used in children's books also far exceeded that of television programs.
Click to enlarge chart.

What should we read to children?
This varies by age and child, but strive for variety: Read fiction and nonfiction, prose and poetry, news articles, etc. Select materials that offer some unknown words and/or concepts. Younger children tend to benefit from narrative storybooks with a fairly predictable story grammar (e.g., "Once upon a time" or something similar). It is also beneficial to read nonfiction in early childhood, including books about dinosaurs or types of locomotives, for example. Select captivating children's books that contain rich vocabulary (see Where the Wild Words Are by Lucy Hart Paulson).

Also, when selecting books, bear in mind that children come to school with vastly different prior experiences with stories, based largely on the culture and language of the home. This question was explored in a previous Vocabulogic survey. Visit Twiigs Poll  to view the closed survey: "Collectively Shared Cultural Literacy and the Movie Industry."

How often and for how long should we read to children?
Read to children every day, if possible. For how long? That varies by the attention span of the child, the interest level of the child, and the competing priorities of the day. Perhaps we should strive for a minimum of 15 minutes each day. Does that sound reasonable?

Can children learn a new word from only one exposure to it?
Yes, children can learn a new word through only one exposure to it as a process called “fast mapping” takes place (Carey & Bartlett, 1978). Children mentally "map" the new word to a superficial and context-specific understanding. Fast mapping does not result in depth of knowledge, but learning does occur, and in a natural manner, through conversations or storybook reading, for example. If the child does not hear the word again within a reasonable time, it is probably forgotten. 

Do children learn words if the book is only read once?
Yes, reading a story only once to children results in word learning. This is good! However, the effect size tends to be small, the knowledge less robust, and the words are more quickly forgotten. In addition, children do not tend to learn the words well enough to produce them themselves via writing or speaking (see Coyne et al., 2010; McKeown & Beck, 2011). Word knowledge is typically receptive, not productive.

How can we improve the likelihood that, by reading aloud to children, words will be learned more deeply and remembered longer? 
Even though researchers are still debating how children learn words from read-alouds, and they take different theoretical positions, they tend to agree on three big ideas:

1) In general, reading aloud to children results in more lasting vocabulary growth if we read the book more than once in the same week. However, this varies by grade level. Repeating the same story four times has resulted in a larger effect size in kindergarten, compared to second grade (Biemiller & Boote, 2006).

2) In general, reading aloud to children results in deeper and more lasting vocabulary growth if we read the book more than once in the same week AND we directly teach the meaning of targeted words by paraphrasing them or briefly defining them at point of use in the text.

Note: Read the entire story without stopping, the first time, to better ensure enjoyment and to avoid disrupting the train of thought or losing track of the main ideas of the story. During subsequent readings, stop to briefly explain or paraphrase target words. 

3) In general, reading aloud to children results in deeper, more lasting, and more productive vocabulary growth if we read the book more than once in the same week AND we directly but briefly teach target words at point of use in the text AND we follow this with interactive word study (Beck, McKeown, & Kucan, 2002; Coyne et al., 2010; McKeown & Beck, 2011.)

Should we preteach a few words BEFORE we read the text to the class? 
Depending on the student's background knowledge, we may need to preteach one or two key words. Often, an understanding of a specific concept is required if the listener is to understand the piece. For example, in a kindergarten lesson, Biemiller and Boote (2006) taught circus before reading Clifford at the Circus. Preteaching key concepts is a practice that applies to every grade level and every subject area (see post by Joan Sedita).

How might we quickly teach word meanings DURING the read-aloud?
There are a number of ways to directly teach word meanings while in the midst of reading to children. Perhaps the simplest is through the use of paraphrasing. When reading aloud at any grade level, teachers paraphrase a word to ensure students understand it. This takes only a moment. For example: “Once upon a time a lass (a girl) lived with her grandmother in a cottage (a small house)." After paraphrasing, reread the sentence, but without the scaffold: "Once upon a time a lass lived with her grandmother in a cottage."

How might we help children interact with target words AFTER the read-aloud, to develop depth of knowledge and productive use of the words? What does interactive, responsive, engaging word study look like?
In follow-up lessons after the story has been read at least once, provide ways for children to engage with the word in contexts other than the story.  Help them create semantic connections and build networks of related words and concepts. For example, if children are taught the concept stubborn to augment the rather simple vocabulary in Green Eggs and Ham, they could discuss how stubborn plays out in Mike Mulligan and His Steam Shovel. Thus, they learn another application of the word, with a slightly different nuance. To prompt productive vocabulary, have children say and/or write the word. Encourage discussion and debate as children engage in word sorting activities with partners. Furthermore, have children juxtapose two learned words against each other. For example, after children have learned drenched and stubborn, ask them to use both words in the same sentence. Have them compare shades of meaning: Which word is wetter: drenched, damp, wet, watery, waterlogged, saturated, dripping, soaking, sopping? How is drenched similar to and different from damp? Tell a friend about a time you got drenched. Also, depending on the grade level, include morphology in the lesson if the word contains common prefixes, base words, or suffixes. Again, depending on the grade level, develop figurative knowledge: Could a rose be drenched in sunshine? How could a rock be stubborn?

There is a growing body of research showing the promising effects of elaborative, interactive word study, built around repeatedly reading a story aloud in primary grades (Beck, McKeown, & Kucan, 2002; Coyne et al., 2010; McKeown & Beck, 2011). This research has also been applied to Response to Intervention models of instruction in primary grades (see post by Michael Coyne.) Furthermore, this method of instruction has been found to be effective with English Language Learners in kindergarten (Silverman, 2007). However, by spending so much time interacting with words in responsive and meaningful ways, there is only time to explore about 3-5 words per day.

On the other hand, there is another body of research showing the effects of teaching more words per day during storybook reading (about 7-10 words per day, 3 or 4 days a week). This method teaches words fairly superficially, spending less time interacting with each word, with the goal of developing greater breadth of knowledge (e.g., Biemiller & Boote, 2006). This goal will be discussed in more depth in the next post.

References:

Beck, I., McKeown, M., & Kucan, L. (2002). Bringing words to life: Robust vocabulary instruction. New York: Guilford Press.

Biemiller, A. & Boote, C. (2006). An effective method for building meaning vocabulary in primary grades. Journal of Educational Psychology, 98 (1), 44-62.

Carey, S. & Bartlett, E. (1978). Acquiring a single new word. Proceedings of the Stanford Child Language Conference, 15, 17-29. (Republished in Papers and Reports on Child Language Development 15, 17-29.)

Coyne, M. D., McCoach, D. B., Loftus, S., Zipoli, R., Ruby, M., Crevecoeur, Y. & Kapp, S. (2010). Direct and extended vocabulary instruction in kindergarten: Investigating transfer effects. Journal of Research on Educational Effectiveness, 3, 93-120.

Hayes, D. P., & Ahrens, M. G. (1988). Vocabulary simplification for children: A special case of 'motherese'? Journal of Child Language, 15, 395-410.

McKeown, M.  & Beck, I. (2011, April). Two approaches to vocabulary instruction for kindergarteners: Comparing effects on comprehension. (Poster talk at American Educational Research Association, New Orleans.)

Silverman, R. (2007.) Vocabulary development of English-language and English-only learners in kindergarten. Elementary School Journal, 107(4), 365-383.

Sunday, September 5, 2010

Preschool: Where the Wild Words Are (Paulson)

Lucy Hart Paulson, Ed.D., CCC-SLP, is a communication specialist for young children. She is on the faculty of the Communicative Sciences and Disorders Department at The University of Montana, sharing responsibilities for teaching, supervising, research, and outreach. Lucy provides professional development for a variety of audiences and is the lead author of the Early Childhood Language Essentials for Teachers of Reading and Spelling (EC LETRS), Building Early Literacy and Language Skills, a resource and activity guide for young children, and  Good Talking Words, a social communication skills program for preschool and kindergarten.

Children’s books are one of the most valuable resources for developing and expanding language and early literacy skills in preschool and in primary grades. Using thematic units revolving around a central storybook is an effective strategy in early childhood education settings. Storybooks are read repeatedly during the thematic unit time period. With multiple readings, children have many valuable opportunities to learn unfamiliar words in the context of language, often with the support of wonderful illustrations. These new words, within the language structure of the sentences, give children wonderful exposure to the complexities and nuances of language. 

Children’s books are where the wild, rare, and unfamiliar words are. Check it out for yourself. Analyze your favorite children’s book. Before reading it for the nth time, predict how many words may be unfamiliar to young children, and then predict how many words there are in the longest sentence within the text.

Here are a few of my favorite books. For each book, I provide a summary of unfamiliar vocabulary and the word count per sentence:

Where the Wild Things Are, by Maurice Sendak (1963), is a classic children’s book with a powerful social emotional message. There are more than 20 words that may be unfamiliar to young children including wolf, suit, mischief, vines, private, gnashed, tame, rumpus, start, and lonely. This story has only nine sentences; three have 60 or more words with the longest being 75(!); four have 20 to 30 words; and the two shortest sentences have 9 and 15 words.

The Big Red Barn, a classic story by Margaret Wise Brown (1956), follows animals in rhyming text through their day in the barnyard as they make noises, play, and go to sleep. A quick count results in more than 20 words that may be unfamiliar to young children including great, golden, squeal, weather vane, rustling, and sailed. This story has a few short sentences. However, most of the sentences contain more than 10 words, and four sentences have 20 to 25 words.

Another popular book, especially during spring, is The Very Hungry Caterpillar, by Eric Carle (1969, 1987). Concepts embedded in this pattern story of a caterpillar turning into a butterfly through metamorphosis include size, the days of the week, counting, and wise eating habits. Nearly 20 words may be unfamiliar to young children. Five of the sentences are 6 to 8 words in length, nine of the sentences contain 13-19 words, and the longest sentence is 40 words.

The Mitten, by Jan Brett (1989), is an adapted version of a Ukrainian folktale. This story contains more than 60 potentially unfamiliar words such as discovered, mole, snuffling, jostled, argue, disappeared, attracted, commotion, drowsy, lumbered, bulged, force, scattered, distance, silhouetted, and an abstract meaning of sound. The sentence length ranges from 4 to 36 words but most sentences are longer, comprised of at least 13 words.

Are children capable of comprehending so many unfamiliar words when they listen to a story? Are they able to learn them? Research suggests that not only are children able to learn new words at a surprising rate, exposure to unfamiliar words seems to “prime” their brains for learning more. An interesting phenomenon in young children is called fast mapping (first described by Carey and Bartlett in 1978) in which a young child may be exposed to a new word or concept in one salient instance, or with limited exposure, and can make an educated guess about the meaning within the context. The child is able to create a mental image of that word. In theory, this phenomenon begins during the language development stage when toddlers’ vocabulary seems to explode and continue through the preschool years. By re-reading the same book to children several times, new vocabulary words and related concepts are reinforced in the mental lexicon. (See How to Read to Children to Optimize Word Learning).

In a study conducted in 1988 looking at vocabulary in a variety of print and media contexts, Hayes and Ahrens identified that children’s books contained an average of 30.1 unfamiliar words per 1000. In contrast, educational television programs such as Sesame Street had only two unfamiliar words per 1000. It would be interesting to make a similar comparison today, 20 years later, to see if there have been changes in vocabulary in newer children’s books and if the writers of educational programs are including more complex vocabulary. One television program written with sophisticated vocabulary for young children is the Martha Speaks Program (prior post by Andy Biemiller).

The context is important in learning multiple meanings. For example, in The Mitten, the little boy’s grandmother, Baba, wants to see that he is “safe and sound.” This represents a new meaning for sound, not something heard. Also, Big Red Barn ends with the animals being “sound asleep” which is another meaning for sound, having nothing to do with the sounds animals make.

Using sophisticated storybooks is one of the best opportunities for young children to learn vocabulary and complex sentence structures needed for competent oral language use. An important job for us, as their language guides and facilitators, is to intentionally plan how to use those words to help make children’s learning wild, wonderful, and powerful.

Finally, it is important to read (and re-read) both fiction and nonfiction to young children. Fiction helps children develop story grammar and vocabulary. Nonfiction helps children develop vocabulary and content knowledge—something that becomes increasingly important as children advance in elementary school.

References:

Carey, S., & Bartlett, E. (1978). Acquiring a single new word: Proceedings of the Stanford Child Language. Papers and Reports on Child Language Development 15, 17-29.

Hayes, D. P.,  & Ahrens, M. G. (1988). Vocabulary simplification for children: A special case of “motherese”? Journal of Child Language, 15(2), 395-410.

Sunday, December 13, 2009

Vocabulary for Preschoolers: The Martha Speaks Program (Biemiller)

This post is courtesy of Dr. Andrew Biemiller, Professor Emeritus, University of Toronto. Andy is an eminent vocabulary researcher and the author of Words Worth Teaching: Closing the Vocabulary Gap (see references). For more about his research and his book on words worthy of instructional time in elementary grades, also see the post by Michael Graves.

By the end of the primary grades, English-speaking children with the weakest vocabularies (lowest 25%) are already four years behind those with the largest vocabularies (highest 25%).1  English Language Learners are often even further behind. What can be done to reduce this “gap”? 

Clearly, schools could do more.  The gap widens during the primary grades.  Little vocabulary is taught in kindergarten, grade one, or grade two.  I know, teachers will assure me that they teach a lot of vocabulary.  Maybe 50 or 100 word meanings.  But each year disadvantaged children need to acquire 300 or 400 more meanings than “average” English speaking children.  At present, they usually acquire 300 or 400 fewer meanings in the primary grades! Until now, primary grade educators have left vocabulary development to parents.  So middle class parents have provided lots of language in the normal course of living at home.  Less advantaged homes have provided a lot less.2 

One support for less advantaged children could be television.  Children watch a lot of television.  But to teach vocabulary, we have to do more than assume children will acquire words from exposure.

WGBH in Boston has developed a program intended to support vocabulary development.  They adopted Susan Meddaugh’s books about Martha—a talking dog.  These books provide both good stories and many opportunities to explain needed words.  There are six books about Martha.  The television program incorporates these stories and adds many more.  The series is now in its second year on PBS television, and third year of production.  I am an advisor to this program. 

The series has drawn a wide audience, mainly of children ages 3 to 7.  Research to date has shown that children learn words from the Martha Speaks shows at about the same rate as they learn words from stories read in school—without vocabulary instruction.  In other words, children acquire the meanings of about 10% of the words explained.  This is not as high as we would hope for, but is a lot better than having no story experience, which many children experience.

At present, we are hoping to increase the rate of word learning by highlighting words explained.  We are also hoping that teachers might reinforce some of the vocabulary addressed in the program.  WGBH has created a video for teachers on ways of doing this.

A lot of children need to learn a lot more vocabulary.  Past research in classrooms shows that most of these children can learn more vocabulary from meaningful texts.   We have a pretty good idea what vocabulary is needed.3  Now I’m hoping that parents, teachers, and Martha Speaks will all contribute to better vocabulary growth!

For videos and background on the television program, see the Martha Speaks web site. Visit this link for parent and teacher materials. Also, note the series of short videos called “The Experts Speak".


1  Biemiller, A. (2005). Size and sequence in vocabulary development: Implications for choosing words for primary grade vocabulary instruction.  In A. Hiebert. & M. Kamil,  (Eds.), Teaching and learning vocabulary: Bringing research to practice  (pp 223-242).   Mahwah, NJ: Erlbaum. 

2  Hart, B., & Risley, T. (1995).  Meaningful differences in the everyday experience of young American children.  Baltimore, MD: Paul H. Brookes Publishing Co. 

3  One good listing of needed words is in my book, Words Worth Teaching, available from SRA/McGraw-Hill:  Biemiller, A. (2009).  Words worth teaching: Closing the vocabulary gap.  Columbus, OH:  SRA/McGraw-Hill.