## when did 'sums' become 'number sentences'?

(45 Posts)Just before Christmas my DD (aged 5, yr 1) brought home a pile of papers she'd been working on at school. One of the pages included some numbers and a series of questions relating to them.

the first question asked 'how many number sentences can you make with the numbers above?' Now I could make an educated guess as to what the question meant, but really, why do sums have to be called number sentences?? It was the first time I had ever seen the phrase.

If anyone can provide any logic as to why a perfectly reasonable word (well it did me now harm when I was at school!) needs to be replaced with something else, I would be grateful. Oh and at the same time, also explain why 'insects' now have to be taught as 'mini beasts' instead. I've still not got my head around that one!

It's a bit like a word problem in reverse

*Are number sentences and number stories the same thing ?*

no... A number story is a description to help the child visualise the number sentence (you would start with the sentence -so something like 3+6=)

and you might create the number story -

Ava had 3 apples and Oliver had 6 apples. How many apples did they have altogether?

Number stories are word problems here, so you might have a number story, have to write the relevant number sentence and then solve it.

Are *number sentences* and *number stories* the same thing ?

'Hara-kiri should be introduced to some sectors of local government et al. '

I think you'll find that the correct term is seppuku, Rollmops.

If you think it's hard as a parent, imagine being a really old teacher who has to constantly unlearn and relearn what the latest, correct terminology is.

Yesterday's word bad, today's word good, tomorrow who knows?

It does have a number of definitions but in maths it means the result of adding two or more numbers/quantities.

Can't the word sum just have more than one definition?

I couldn't remember when I was taught that but it was when I did my Montessori training. But, yes it's only the answer in addition but it is never the question.

^ chicaguapa Wed 09-Jan-13 12:41:29^*I was always taught that the sum is the answer, not the question.*

The sum is only the answer to an addition calculation

'Number sentence' makes much more sense than 'sum' (which as others have mentioned suggests addition only.)

A mathematician might use the word 'expression' rather than 'number sentence' but it means the same thing, and there are a lot of analogues with a word sentence: it needs to be well-formed according to a predefined syntax, you need to identify the different parts (operators and operands, nouns and verbs) and you interpret it according to a known grammar (e.g. BODMAS)

OK guys, so it looks like I'm the one who's getting the nomenclature wrong in my head! I'll just try and keep quiet when it comes to what DD is coming home telling me

I learned maths by some awful method called Fletcher Mathemathics which used to frustrate the hell out of me by taking a whole page to do one sum! I guess the 'sums' did include sentences as we had to draw copious amounts of arrows and label them as 'can be written as'.... I can safely say its a learning method that has stayed with me all these years although for completely the wrong reasons.

All I can say is that until 2 years ago I had never heard the term mini beast (depsite having been educated at the same time as some of the other posters on the thread) and until a month ago had never seen the phrase 'number sentence'. You live and learn!

I quite like number sentence. I'd be a bit horrified if teaching was exactly the same as it was when I was at school tbh - the idea that noone had had a good idea about how to make it better in 30 years is rather scary!

I'm naturally quite good at Maths and it strikes me that a lot of modern Maths teaching is explaining good strategies to children (for making mental calculations for example) that are a close approximation of what I used to do in my head. Teaching less able students the tricks that more able students might be using sounds like a good plan to me. I don't remember it being as explicit when I was at school.

To be fair to the OP she only asked when did it happen. If the answer is 1945 then that's still OK.

I was always taught that the sum is the answer, not the question.

It isn't new not true LOL

a number sentence is an equation or inequality.It is a statement in numerical terms.

It isn't true my junior maths text book in the 1970s talked about number sentences.

I quite like number sentences

you start at the left and move to the right, just like reading!

it's a concept they are familiar with

both my dds are in primary and have grown up with number sentences, number lines, chunking and they are much better at maths than I was at the same age and I've got an A level in the subject!

I could follow a process but I didn't understand why that process worked, I just knew it did

they understand why

Hi mrscog, thanks very much for your encouraging remarks and I am glad you agree.

(It's obvious, of course, that you can't call everything that might be studied in a 'minibeasts' topic 'insects', as that is scientifically incorrect. A worm is an invertebrate, but it is not an insect - and to artificially remove worms from a topic which might well cover e.g. millipedes and caterpillars just so that you can correctly call it 'insects' would be perverse)

Tbh, I tend to use the term 'calculation' for what might in colloquial terms be called 'a sum'.

However, number sentence is an entirely valid description, and certainly much more accurate than 'sum' for e.g. multiplication or subtraction calculations.

Why tell children one year that 'any calculation written with numbers and symbvols is called a sum', and then the next year say 'oh, actually, now we are going to tell you that sum means addition so you can't call them sums any more'?

Much better to teach clear, correct and unambiguous terminology right from the start - sometimes simplified, in the 'number sentence' moves on to 'calculation' moves on to 'equation' sense, but at least not blatantly incorrect / misleading!

(Though, as I say, I would use 'calculation', and 'invertebrates' - if SEN pupils can master 'diplodocus' (and explain how it is different from a stegosaurus), 'calculation' is a doddle)

Great points **Alan** I hate the attitude of 'rubbish at maths' I don't find it acceptable from adults. I do accept that maths teaching over the years has been poor and that a lot of people find even basic maths difficult. If you're an adult and find maths a challenge then you should look at the khan academy website as there is step by step tuition of mathematics right from the basics.

Learnandsay, the books I am thinking about off the top of my head are Brian Cox's E=MC2, a book which is certainly not going to be read by people without a scientific background of some sort (but still an apology is given) and Professor Hawking's A Brief History of Time. My point is that this apologising for maths is endemic in our society and once you are aware of it, you will see it in many places (the BBC, magazines etc). People do not apologise for using big words or quoting Shakespeare or other famous authors we are all supposed to be familiar with, even though there is less study of them than of mathematics on the normal school curriculum.

My point is that apologising gives people (particularly young people) the impression that mathematics is not important, when it is vital to our future technological development as a nation. If we want our youngsters to do well in mathematics we should treat it as a subject that demands some respect and encourage them to be good at it as we would encourage them to be good at reading and writing, for example.

I hope this makes my point clearer.

minibeasts = invertebrates = animals without back bones.

I have always introduced the term 'invertebrate' when I've done the subject in year 1/2. Nothing wrong with teaching them the correct terms.

.... which fits with not saying 'sum' for anything other than addition :-)

minty - if you enjoyed and were good at maths yourself at school you won't have any problems understanding the way it's taught now.

IME parents are too hung up on how they were taught and seem reluctant to accept that a different method can be just as good. If you are good with numbers you probably use the "new" methods in your head anyway you just don't give them a name.

I find it's easier to not worry about things having different names otherwise you'll just get annoyed every day

Alan, I'm not familiar with the apologies which you're referring to. But is it at all possible that both professors are simply being humble as is the British tradition? There is also an issue to do with popular/populist writing which is to be inclusive. I'm not sure what the maths that you're talking about looks like. But I'm pretty sure that strings of equations are going to elucidate the subject for a relatively small minority of readers. I'm sure that minority needs no apology. But the publisher wants to appeal to the widest majority for obvious reasons. I'm sure the professors don't launch into an apology when they address a student body.

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