Khayyam wrote:emk wrote:The "standard" advice I've heard given by schools and language teachers is "no more than 5 unknown words per page."
But the reality is that it's really hard to find books and media that are that close to my level. I have to work with what I can get, and until several years ago, that meant ordering DVDs from France and hoping they had accurate French subtitles. And then buying a region-free drive to watch them. So I don't think I ever got the luxury of following the "no more than 5 unknown words per page" advice during the B1 and B2 levels.
FIVE WORDS PER PAGE? That's just astounding to me--there've been many times when I could more or less understand a narrative despite there being far more than five new words per page. What's relevant, IME, is not so much how many of them there are, but how bunched-up they are. If you don't understand five words in a 10-word sentence, then you likely won't understand the sentence at all. But if you have 15 new words spread more-or-less evenly over a page, there's a good chance you can learn them from context.
I think the whole thing comes from well-meaning attempts to answer questions about what "Comprehensible Input" really means, because it's something that has been so vaguely defined for so long. 5 is by itself a suspiciously round number, but I've seen criticism that teachers were told to teach "no more than 7 words per lesson", and although I've only seen it as criticism and not actual advice, I imagine it's coming from an overinterpretation of "the psychologist's magic number": 5 plus or minus 2. That was what I remember being told described working memory -- the claim was that the average person can process between 3 and 7 things in working memory and can only identify that many distinct items in view without actually counting.
This is where chunking comes into things, because the idea is that by grouping a bunch of concepts together and making the collection into its own concept (like "shot ...self/selves in the foot") we reduce the load on working memory from a notional 2 or 3 down to 1.
It looks like they may have revised it down to 4 (or 3 to 5), which I'm happy about because I was aware that I was failing to recognise more than four things visually -- I could see that a normal bass was a bass because it had 4 strings, but I could only see that a normal 6-string guitar was a normal 6-string guitar because it had a certain symmetry -- I could split in half and see three strings and three strings. With a 5 string bass, I would see that there was a string serving as the axis of symmetry, where a guitar had the axis in a gap.
So the old logic behind "no more than 7" seems suspiciously similar to the logic behind "no more than 5".
The problem is, though, that working memory is a very short term thing -- you will be using working memory plenty of times during a lesson of even half-an-hour or on a single page on a book, and even if you're not starting from zero every time. there's not really any reason to see a page as a boundary on working memory. It's a pretty arbitrary rule-of-thumb, and it's only useful if it's recognised as such, and individual practicioners know that they should apply judgement... but like so many things, "what gets measured gets managed" and any attempt to apply judgement risks getting clocked in a performance review as "going over the recommended limit."
Enough repetition of material that's far above your level can hammer it in--I've learned that for sure. It's just a question of whether it's better to spend the time hammering, or to read easier stuff that doesn't require it. I suppose you could hedge your bets by training both ways.
Well, I think the difference with the advice under discussion is that teachers would be looking at time constraints. You don't want your students to be set indefinite tasks -- they need to be in control of time. Individual learners working without a teacher can spend as long as they want to work out what the page says, but in a class, people who flash through it will finish the passage before the slow and methodical ones have even found their first unknown word in the dictionary. Whatever you do, you're going to lose some of them. Even if you're giving the reading as homework, you'll end up with the methodical ones feeling overwhelmed, and there will be less time-on-task for the quick ones, so potentially less learning anyway.
And going back to the working memory numbers, the "no more than 7" and "no more than 5" rules are ignoring the fact that 7 and 5 were proposed *upper limits* for average human performance; which means most average humans fell under that. Is it really a good thing for a teacher to only teach for the absolute best in the class...?