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What Does It Mean To Transect A 2D Shape?
33 Answers
Help!
I've been given the following sheet to give to Y6 children in maths.
http:// www.goo gle.co. uk/url? sa=t&am p;rct=j &q= &es rc=s&am p;sourc e=web&a mp;cd=1 3&v ed=0ahU KEwjexd PL05jNA hWmDcAK HQAJCyw QFghXMA w&u rl=http %3A%2F% 2Fwww.p rimaryr esource s.co.uk %2Fmath s%2Fdoc s%2Fdia gonals_ of_quad rilater als.doc &us g=AFQjC NH-u4PF IKuLJyh jc0-Jqi KmgRspr Q
I cannot find what Transect means anywhere on the internet!
Bisect I think means cut it in half so that you are left with 2 mirror images, but whatt does Transect mean. I just spoke to a couple of colleagues all of whom were quite baffled as to what it means because the example given has a square and under the column Transect it says NO. (pls see the sheet to see what I mean)
All help much appreciated.
Thank you in advance
Lindy Hop : )
I've been given the following sheet to give to Y6 children in maths.
http://
I cannot find what Transect means anywhere on the internet!
Bisect I think means cut it in half so that you are left with 2 mirror images, but whatt does Transect mean. I just spoke to a couple of colleagues all of whom were quite baffled as to what it means because the example given has a square and under the column Transect it says NO. (pls see the sheet to see what I mean)
All help much appreciated.
Thank you in advance
Lindy Hop : )
Answers
Best Answer
No best answer has yet been selected by Cmitchell. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.'Transect' simply means 'cut across'.
The diagonals of all the rectangles listed transect those rectangles, with the exception of the delta kite where one of the diagonals is external to the figure, in that it joins the top two 'points' together and thus does not 'cut across' (= 'transect') the delta kite.
The diagonals of all the rectangles listed transect those rectangles, with the exception of the delta kite where one of the diagonals is external to the figure, in that it joins the top two 'points' together and thus does not 'cut across' (= 'transect') the delta kite.
An interesting point, Ellie!
My definition of 'transect' is based upon what's in the dictionary (and, indeed, how I'd use the word in everyday language). I'm unaware of any standardised mathematical definition of the word despite:
(a) having 'The Universal Encyclopedia of Mathematics' on my desk (as that standard reference work doesn't mention 'transect') ;
(b) holding a university degree in mathematics ; and
(c) having taught the subject (up to A-level) for 15 years!
I see that Fiction-Factory is around tonight, so I'll see if we can get some help from a current maths teacher!
My definition of 'transect' is based upon what's in the dictionary (and, indeed, how I'd use the word in everyday language). I'm unaware of any standardised mathematical definition of the word despite:
(a) having 'The Universal Encyclopedia of Mathematics' on my desk (as that standard reference work doesn't mention 'transect') ;
(b) holding a university degree in mathematics ; and
(c) having taught the subject (up to A-level) for 15 years!
I see that Fiction-Factory is around tonight, so I'll see if we can get some help from a current maths teacher!
I've uploaded the relevant page to TinyPic, F-F:
http:// tinypic .com/vi ew.php? pic=4uw 6sy& ;s=9
http://
I also have a University Maths degree and have never come across this term before. As I said, teachers submit their own worksheets to Primary Resources. I still teach 2 mornings a week (in a Primary School) and have found some excellent material on Primary Resources but some that I wouldn't use. This is apparently for a Year 6 Class. If you go to the website and click on Maths then Shape and Space you should find it.
http:// www.the freedic tionary .com/tr ansect
Transect appears to mean cut from side to side therefore diagonals would not transect a shape.
Transect appears to mean cut from side to side therefore diagonals would not transect a shape.
All I can suggest is that they mean the diagonals intersect at right angles.
This is true for a square where the lines also bisect each other, untrue for a rectangle, where they do bisect and true for a kite where they do not bisect but do intersect at right angles.
Just a suggestion as I have not seen the term used in this way before.
This is true for a square where the lines also bisect each other, untrue for a rectangle, where they do bisect and true for a kite where they do not bisect but do intersect at right angles.
Just a suggestion as I have not seen the term used in this way before.
^^^ Possibly, Shoota, although that would mean that the answer to everything in the 'Transect' column would automatically be 'No', which seems a little odd.
One of the most important things about the study of mathematics is that it's a universal language. (i.e. a mathematical statement made in Bradford must mean exactly the same thing to someone in Berlin or Beijing). I'm concerned that we appear to have a worksheet for primary school children where even the maths graduates on this thread can't find a definition which seems to concur with what's being presented on that worksheet!
One of the most important things about the study of mathematics is that it's a universal language. (i.e. a mathematical statement made in Bradford must mean exactly the same thing to someone in Berlin or Beijing). I'm concerned that we appear to have a worksheet for primary school children where even the maths graduates on this thread can't find a definition which seems to concur with what's being presented on that worksheet!
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