Showing posts with label word learning. Show all posts
Showing posts with label word learning. Show all posts

Wednesday, June 13, 2007

Look mom, I'm hanging out!

Maria uttered this phrase several months ago. She was hanging by her arms off the back of the couch, and said, Look Mom! I'm hanging out! I laughed, which of course has made her repeat this phrase every time she does it! But more than just being amusing, it points to how some children learn words first and concepts later. It gets back to the age-old question: Which comes first, the idea or the word? Maria seems to do it both ways.

Most of the time, it seems that concepts and words are acquired closely together. Certainly that's been true for my kids. But Maria also sometimes clearly learns the word and then the concept. That's the case for the phrase 'hanging out'. But also for other words. She recently told me "My birthday is going to come once a month. No, once a week." I'm pretty sure she understands neither the concept of "once a" nor the time phrases "month" or "week". She was just trying out the words.

Time words in general seem to be an area where words seem to come before concepts. Like many children, Maria is having a hard time with time words because their reference changes depending on the day. Last week we were talking about an upcoming birthday party, and I said, "We're going to the party tomorrow." The next day, we got into the car to go to the party, and I said, "We're going to the party." Maria responded "No, that's TOMORROW!" After starting off with mind bending phrases such as: "Today is tomorrow" I realized it was much simpler to say "Well, the party is on Saturday, and today is Saturday. The party is today now." It made me realize how useful the names of the days of the week are. But, the concept is still fuzzy for Maria. Every once in a while at dinner, she will ask "Is today tomorrow?"

Numbers and the alphabet are another area where production seems to precede comprehension. I'll confess to not being terribly impressed by parents who tell me that their 2 year olds can recite their ABCs or count to 10 (or 20). Oh, sure, it's a nice thing to do, and it's a good start. But, that doesn't mean that the child understands what these represent. That understanding takes a lot longer.

Maria is just getting that understanding for numbers, known as one-to-one correspondence. Three months ago, she'd just put her finger on the objects and rattle off "1, 2, 3, 4, 5, 6, 7, 8, 9, 10" when we asked her how many things there were. She didn't "get" the idea that the numbers represented a set of things. They were just a list of what you said when people asked you to count. Staring in the last month or so, she will place her finger on whatever she's counting and say "1", then move her finger, and say "2", etc. And, as long as the items to be counted are reasonably aligned (and not more than 14) so she doesn't get confused, she'll be able to accurately count them. She's learned that each number represents one thing, and that you 'add' by going up in numbers. That's a huge leap forward in mental development and understanding of symbols.

We've yet to achieve that leap for letters. She can sing her ABCs quite nicely, and has been doing so since she was about 2. But she still doesn't get the link between the letter and the sound. She has the language down, just not the concept. Oh, she'll say things like "M" is for "Maria", but it's clear from other contexts that she doesn't understand what the means. For example, we have a placemat with the alphabet on it - each letter has an animal next to it that starts with that letter. So, A has an alligator, C a camel, etc. Last night, Maria cheerfully pointed to the M and said "M is for Gorilla!" and then to the H and said "H is for Donkey!" Her perception of the animals is more accurate than her perception of the sounds. That monkey does look like a gorilla. And the old nag of a horse does look a lot like a donkey.





So, which comes first, the concept or the word? It all depends on the concept and the word!

Wednesday, May 16, 2007

Which station is not the busiest...not the...the not...busiest

One of the oldest questions in language learning is the question of whether the idea or the word comes first. It's a bit of a chicken-egg problem – can you express an idea if you don't have a word? Can you use a word if you don't understand the idea?

Sometimes in language learning, however, it's clear that the concept comes first. I distinctly remember when I was about 3, learning word 'tomorrow'. I was standing in our living room, and I said something about "the day after the day after today" to my mother. "Oh, the day after tomorrow?" she said. Aha! That was the word I was looking for, but didn't know existed. It's a very clear memory in my mind - the feeling of satisfaction that there was a word to express my idea. While I didn't shout "Eureka!" I do remember thinking "Oh, that's how you say that."

Something similar happened to Tommy about 2 weeks ago. He had concept, but needed the word to go with it.

About once a week, we drive by Fire Station 16 to see the fire trucks on our way home from school. It's a bit of a detour, but not a major one. When we go by, the trucks are almost always in the station. This is in contrast to Station 4 downtown. Tommy often sees those trucks go by school, and they are often out. One day, as we were driving by Station 16, Tommy asked why the trucks were always there. "Well, it's not a very busy station," I replied. (From our perusal of the Portland Fire Bureau's website , we've learned not only what equipment is located at each station (Station 4: One tiller (hook & ladder) and 2 pumpers; Station 16: one pumper and one rescue truck), but also how many calls they have a year. Station 4 had well over 4,000 calls in the last fiscal year, Station 16 under 1,000.)

"Which station is the busiest?" Tommy asked.
"Probably one of the ones downtown, I think."
"Why?"
"Well, Station 4 has over 4,000 calls a year, and I think Station 1 has over 6,000 - that's over 15 calls a day!
"How many does Station 16 have?"
"About 900 in a year, I think. That's about 3 a day."

"Which station isn't the busiest?" Tommy then asked.
"Any station other than Station 1, I suppose."
"No, which station is not the busiest?" "
"Any other station," I replied, wondering briefly about his language comprehension.
"No, which station is not the busiest?" he insisted.
"Ah," having a sudden burst of understanding, "which station is the least busy, do you mean?"
"Yes, which station is not the... is the not busiest?"
"I don't know, but I bet Station 16 is one of the least busy."
(For the record it's Station 15 with just 475 calls for the fiscal year.)

Ah, the struggle of trying to express the concept least without having the word! In this example, at least, it's clear that the concept ("not busiest") came before the word. Many words seem to follow a similar path. Often, the word and the concept are learned together, or at least very closely in time. Does the concept ever come before the word? Stay tuned....

Honey-Roo or Driving the Driver

Maria and I were reading a Winnie the Pooh book one day when she was about 22 months, and were talking about the characters. I pointed to Pooh and said

"Who's this?"
"Pooh!"
"And who's this?"
"Piglet!"
"And this?"
"Honey!"
"Honey? Umm.. No dear that's Roo."

For several weeks, she adamantly insisted on called Roo "Honey". I guessed that Kanga had called Roo "honey" in one of our stories, and so that's what Maria heard.

I thought no more about the mystery until we were reading one of her favorite books – a collection of songs that had the words changed to be "Pooh" songs. This book was her favorite to 'read' as she fell asleep. It came complete with a "press the button" electronic keyboard that played that song, and she insisted that we sing along with it. (Surely there must be a hell somewhere where the manufacturers of these tinny, off-key singing books will be chained up and made to listen to their inane songs over and over and over again. But I digress.)

There, on the last page of the book was the answer to the Honey-Roo mystery. The song was "Where Oh Where Can My Honey Pot Be?" and there was a picture of Pooh, sitting disconsolately in a chair, missing his honey pot. "I've looked in the cupboard and under the stairs, oh where oh where can it be?" And behind Pooh is a picture of Roo, holding up a table cloth, and on the floor, under the table, is Pooh's honey pot!

I can just imagine a scene where we were reading this book and said "So, where is it?" and pointed in the direction of Roo and the honey pot. Maria, not knowing what a honey pot was, or maybe not knowing what we meant by "it", linked "honey" with the most interesting thing we were pointing toward: Roo. This is a common thing that children do - they will link a word with the most interesting plausible object (see "Nice Finger Mom") that someone is indicating.



So what was going on? A very simple and yet reportedly rare error in child word learning: a mismatch. Children, when they learn words, generally get within the ballpark for the meaning, even if they don't get the exact meaning. So, they may label a 'tomato' and 'apple' but they rarely call it a garden hose! But, every once in a while, a child simply gets the wrong word linked to the wrong object, and labels "Roo" "honey". Maria eventually learned Roo's name, but even now, close to a year later, she will sometimes slip and call him "Honey" again.

These errors can be mystifying. I suspect many go undetected, chalked up to a parent's or child's inability to make sense out of an interaction. Indeed, such was nearly the case for the only mismatch that I detected in Tommy's word learning. When Tommy was 2, his favorite 'game' to play was 'garbage truck'. He would pretend to drive the garbage truck, make brake sounds, stop the truck, climb out, pretend to dump the garbage into the truck, climb back in, and drive on to the next 'house'. This game could be played anywhere (beds, church pews, couches)- but one of his favorite things to do was to climb into our laps and pretend we were the seat and he was driving. One day, when Tommy climbed into my lap, he announced "I'm driving the driver!" "Where?" I asked. "Right here!" "No, where are you driving the driver?" "Here. I'm driving the driver." After several more go rounds, I gave up, figuring he couldn't understand 'where' questions yet.

Then, a week or so later, we were reading his favorite book: Garbage Trucks. On one page, it asks, "Would you like to see where the driver sits?" and I read this and asked Tommy - "where is the driver?" Tommy pointed to the steering wheel. Eureka! Mystery solved. When Tommy said "I'm driving the driver," he wasn't talking about a person or a location - he was saying that he was operating the steering wheel. Apparently, when we were pointing to the picture of the driver, the most interesting thing for Tommy was not the person but the steering wheel. Thus, another mismatch mystery solved.

As with malaprops, perhaps the most interesting thing is how rare this kind of error is. Tommy had one clear mismatch, and Maria has had one or two. One or two real mismatches out of the 500+ words they'd each learned by the time they were 2. Surely there were many more opportunities to get a meaning wrong, and they didn't. However children are going about the task of linking words to meaning, they are, in the end, remarkably good at it.

Friday, March 23, 2007

Firefighters and Police Officers

"Tommy, you want to play firefighter when we get home?"
"Of course!"

Do you remember a time when firefighter seemed awkward when compared to fireman? My kids don't. They happily play firefighter, police officer, letter carrier and ambulance driver. They've never met a stewardess, only flight attendants.

Does it matter that they're growing up with different words than I did? In some ways, no. Calling someone a police officer rather than a police man doesn't make him less male, if he is a male. But, calling someone a police officer does open up the possibility that they could be female if you haven't met them yet. In this way, the titles we use do matter. I grew up in a world with policemen, firemen and mailmen. I had a paper route and had to collect money from customers. How I hated it when I heard people say "Honey, the paperboy is here!" It denied part of me. Along with the words, there was a tacit understanding that those weren't jobs for girls or women. Only after women started to join the police force or the fire department, did the job titles change. When I had my paper route, I would happily have been a paper carrier, rather than a paperboy or even papergirl.

But, oh how these changes have been decried as they've taken place. Traditionalists have claimed that the new words are grating on the ears, or even absurd. How can we talk about a committee chair convening a meeting, as if an inanimate object could do such a thing! Others comment on the awkwardness of the construction he or she (or s/he) in writing, and note that no one ever says these things. But, the spoken language has a perfectly good alternative: they used for singular if you don’t know the gender. It’s what we’ve done since Old English, and while it’s decried by logicians (a plural pronoun shouldn’t refer to a singular thing), it’s an acceptable alternative.

Furthermore, these arguments miss the point that language changes. It always has and it always will. We no longer use the Old English word gnyrn (sadness, sorrow), we've added they (from Scandinavian), niece (from French) and sheriff (from Arabic). Did the Anglo-Saxons quibble about this new pronoun they or mourn the loss of gnyrn? Did Robin Hood complain that the word sheriff grated on his ears? The person certainly offended him. The word? Probably not.

More insidious are arguments such as those made by self-appointed pundits such as Christina Hoff Summers. She suggests gender neutral language is unnecessary because many languages mark gender. She suggests that to be gender neutral, we'd have to change the whole structure of French, as all French nouns are either masculine or feminine. Or, she argues, man can be specific to males or refer to humans in general, because words can have more than one meaning. But Hoff Summers' arguments are straw arguments. She confuses grammatical gender, used in French, with natural gender, used in English French speakers happily refer to tables as she and desks as he in a way that no English speaker can do with a straight face.

Furthermore, such arguments miss the fact that words retain their multiple meanings, despite the context. While man can have more than one meaning, that doesn't make the male meaning disappear. When we read words with more than one meaning, we call up not just the meaning given by the context, but all the possible meanings. Psycholinguistic experiments have shown that if I tell you that "The diplomat was shocked by the presence of bugs in the hotel room," you will briefly call up both the meaning insect and listening device when hearing 'bug'. Thus, using man when you mean people or humans, will call up the meaning male, even when it's not intended. Why not just say people and avoid the whole issue?

Finally, using fireman or mailman gives subtle indications of our culture and beliefs. Referring to firemen suggests that this is a male job. Girls need not apply. This is no longer the state of the world. My daughter is free now to choose a career other than teacher or nurse. She's already seeing herself in roles that even I, child of the feminist revolution, never could. As she said to her brother the other night: "Tommy, you be the nurse and I'll be the doctor!"

True, some of her dreams are still impossible:

Tommy: "Do you think I could be a firefighter when I grow up?"
Mom: "If you want to."
Maria: "And I'll be a Dalmatian when I grow up!"

While reality may keep her from becoming a Dalmatian, at least her language won't keep her from becoming a firefighter.

Tuesday, February 27, 2007

Dora the Exploder meets Bob the Building

Starting at about age 2 ½ , my kids each went through a period where we watched popular TV shows, just not quite the ones the networks were broadcasting. Tommy always asked to see "Dora the Exploder" and Maria has a passion for "Bob the Building" and will sing loudly and confidently: "Bob the Building, can we fix it? Bob the Building, yes we can!"

But it's not just TV characters that suffer this fate. For a couple of years, malaprops have been sprinkled into my kids' vocabularies. The traditional kids' song Down by the Bay has become "Down by the Bed..." Baa baa black sheep has "one for my master, one for my game, and one for the little boy who lives down the plane." We've talked about "snowflags" (snowflakes) and "snow lizards" (blizzards). Some of these are simple sound substitutions. But others are clever combinations of sound similarities and analogies with other words they know. So, Maria was talking about "eyelips" the other day. If your mouth has lips, why not your eyes?

They mishear words too, coming up with their own mondegreens. For a long time, Tommy would announce that something was on "this eye" (this side) and point to his eye to indicate the side. Maria was wearing a 'princess hat' one day (a visor upside-down so it looked like a tiara). I said, "oh, you're wearing a tiara. A crown." "I'm not a cwown, I'm a pwincess!" She had misheard crown as clown. When my sister was learning to write, she asked my mom how to spell "smat". "There is no such word," replied my mother. "Yes, there is!" insisted my sister. "Well, can you use it in a sentence?" "Sure, I got crumbs on my play-smat." (placemat).

I love to collect these, not just because they're funny but because they show great things about learning words. Early vocabularies tend to be 'sparse'. Each word tends to be relatively unique – they don't overlap much either in sounds or meaning. In technical terms, they don't have many words in the same neighborhood. But, as more words are added, some of these new words come close to ones already in a child's lexicon. These errors signal a new complexity in how words are being stored and organized in the mind. Instead of keeping the neighbors at bay and learning words that are distinct from one another, children are filling in the neighborhood, and sometimes the boundaries between the 'lots' aren't clear. Thus these malaprops and mondegreens are a side effect, if you will, of rapid vocabulary growth.

These errors also reveal just how hard children are working to acquire language. We think of language acquisition as 'effortless', and yet it's not. Imagine being in a country where many of the words you encounter are new and unfamiliar. If you've ever experienced this, you know how exhausting it can be to try to make sense of what's happening around you. This is the situation children find themselves in day after day. They are not sitting passively by, waiting for words to come to them. Children are actively trying to segment and make sense out of the words they hear. As children learn new words, they try first to find sounds sequences that match the words they already know, and sometimes they miss.

But, the amazing thing is not the errors they make, but how many times they get words right. These errors are actually pretty rare. Estimates of word learning suggest that preschool children are learning 3-5 new words a day (a figure which increases during the school years), leading to a vocabulary of around 4,000-5,000 words by age 5. Learning 3-5 words a day should give rise to many opportunities to get the word wrong. Children hear a word once, maybe twice, and get enough to get the gist of it, but its representation is still pretty fuzzy. But that doesn't seem to be the case. Despite this incredibly rapid increase in vocabulary, I've managed to collect maybe 50 malaprops and mondegreens from my own kids. Even if I've underestimated the number by half, or a quarter, that's still a small fraction of the words in their vocabularies that they've gotten 'wrong'. But, even when they got it wrong, they were usually at least in the right neighborhood.

_____________________________________________________________

(Wikipedia defines mondegreen as follows "The American writer Sylvia Wright coined it in an essay "The Death of Lady Mondegreen", which was published in Harper's Magazine in November 1954. She wrote:
When I was a child, my mother used to read aloud to me from Percy's Reliques. One of my favorite poems began, as I remember:
Ye Highlands and ye Lowlands,
Oh, where hae ye been?
They have slain the Earl of Murray,
And Lady Mondegreen.
The actual line is "And laid him on the green", from the anonymous 17th century ballad "The Bonnie Earl O' Murray".)

Sunday, February 25, 2007

The great book mystery


Books were a mystery to our son for nearly the first year and a half of his life. As a dutiful, academic parents, our house was filled with children's books. Some were gifts, others I'd purchased. I'd even subscribed to BabyBug at nearly $4 an issue. I loved BabyBug. Tommy's only opinion seemed to be that it didn't taste very good.

When we sat down to read, Tommy had about a 3 second attention span. I could sometimes increase it to several minutes by letting him turn the pages and chew on the corners. But the moment I opened up a book to read, he was squirming off my lap. I even resorted to reading "librarian style", holding up the book from the chair while he played, oblivious, on the floor.

For a while, between about 8 and 12 months of age, I mostly gave up reading books to him. I felt like a terrible mother. I was failing in my duty to raise a literate child. The importance of reading to your child is infused into every parenting book, magazine and conversation about child raising. Parents bring their infants to story hour, their babies to the library, read books every night before bedtime. And here was I, academic mother, studying child language development not reading to my son. But really, what's the point when he just didn't care?

I consoled myself for a while with the rationalization that it's not jut the number of children's books in the home that matters, but the number of books for parents and the parental involvement in literacy. How can we expect children to embrace books if the only books in the house are children's books? Who wants to do something that's only for kids? When the adults in the house read, that's when it's appealing to children. And Lord knows, we were constantly engaged in activities involving literacy – reading e-mail, reading books, reading student papers, reading the newspaper, answering e-mail, writing on the computer, reading e-mail. We were modeling reading and writing for most of Tommy's waking hours.

And yet, books remained an enigma to him. As he became more communicative, and I observed him more, it became clear that he just didn't "get" the illustrations in children's books. I'd point to an illustration of something I knew he knew the word for (dog, car), and he'd look at me with puzzlement. Or I'd say "oh, look at the sheep!" and he'd look at me like I had two heads. Admittedly, some of the illustrations in children's books are pretty far-fetched. A fuzzy blob representing a sheep, or is it a cloud? A dog standing on two legs eating with a spoon? Nope, that just didn't make sense to my literalist.

And then something in the back of my mind remembers a discussion while I was a post-doc, that children with certain disorders (Autism? Fragile X? Down Syndrome? I can't remember) perform better at vocabulary tests when presented with pictures of actual objects rather than illustrations. So, as an experiment, I got several books that had real pictures, My Very First Word Book and My First Truck Board Book.

Maybe it was his age (15-16 months). Maybe he'd developed enough vocabulary to care. Maybe it was the pictures. But suddenly, he "got" books. Not only did he understand the pictures, but he understood that the pictures in the book represented things in the real world. I remember reading the Truck Book one evening. When we came to the picture of the tractor, Tommy got off my lap, ran over to the toy bin, and picked up his toy tractor. He ran over to me and showed me the tractor, saying "tractor", then pointing to the picture in the book, "tractor". He was demonstrating, the best way a 16 month old could, that he got the similarity. "Look mom, they're the SAME thing." He was so excited about his discovery. He had discovered that pictures in books had meaning. And he had discovered that words can label many things – what's known as 'context-free' word learning. "Tractor" didn't just label his toy tractor, but all tractors.

From then on, books made sense. We read My First Truck Board Book so many times its binding fell apart. We still had to keep the stories short. We still had to let him direct the reading and page turning. To this day, he prefers non-fiction to fiction. But, I'm no longer a failure as a mother. My child reads books.

Tuesday, February 20, 2007

The first word

What better place to start than with the first word. Our son's first word was the sign "more". I remember clearly the day he signed it. He was 10 ½ months old. I had given him a graham cracker in the kitchen, and then gone to sit down in the living room to read. He crawled in, looked at me, and brought his fingers together for "more". I was thrilled! His first word! "You want more? More graham cracker? I'd be happy to get you more!!" I babbled away, barely remembering to actually get him the graham cracker before grabbing my notebook to record his first word.

Every parent eagerly awaits their child's first word. The first word is the milestone that marks the transition from infant (Latin: without language) into childhood. It marks a child's entrance into human society. Humans are driven to communicate. So much so that if we can't speak due to deafness or an inability to articulate, then language still finds a way to come out through our hands, machines or even by spelling words using our eyes.

When you're a linguist who studies child language acquisition, that first word may be even more eagerly awaited than in other families. I eagerly awaited not only the first word, but the precursors to those first words: the first social smile, eye contact, turn taking, babbling, pointing, gestures. Is my child meeting these milestones? Will he be an early talker? A late talker? First social smile: 4 weeks! That's early. Babbling: not babbling at 6 months as "predicted" by the milestones, more like 7 months, and then not becoming as varied as it's 'supposed' to be as he grows older. Maybe he'll be a late talker. Pointing? Hmm... doesn't really point yet. Does he get the idea of communication? Can he follow my attention? Does he need help? Learned to clap at 10 months – whew! gestures are a precursor to language, so he's on track. And then: the first sign: 10 ½ months. Maybe he WILL be an early talker. These are the sorts of things my mind tracked as I nursed, changed diapers and played.

I had been half-heartedly signing to our son for a few months. I knew the studies that exposure to signs might help early vocabulary development and that children who could sign were generally less whiney than ones who couldn't. I was a bit skeptical of the research studies and, not being fluent in sign, a bit reluctant to teach a language (sign language) that I didn't know myself. It didn't flow naturally from my fingers. When I could remember, I used a few signs that I thought might be important to him: "milk" (for nursing) and "down" (to get out of the high chair). "More" was an afterthought. It's a common sign used in day care centers and signing classes, and I gave it a try. So, our son's use of "more" as his first word was a surprise and a joy for me.

And for our son, the sign "more" turned out to be incredibly versatile. He could request "more" of an food. "More" of an action. He extended it to mean "I want" – crawl over to the door – sign "more" meaning "I want to go out". While nursing, tap mom with one hand in the "more" shape to say you're ready to switch sides. Crawl over to the bookshelf, sign "more" meaning "I want to read a book". It's an all purpose word. So, versatile was this word that I waited 53 days, pen and notebook in hand, for the next word to arrive.