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***** Leaving Cert Ordinary Level Maths - both papers ****

124678

Comments

  • Registered Users, Registered Users 2 Posts: 13 Kmac16


    Anyone feel there were mistakes on the paper?
    In the sequences in series question, in our Edco exam papers the recurring question is making a formula the sum of the first n series'. In today's exam it was the same question, but the usual way of just adapting the SN formula wouldn't work? Anyone else get this?

    Also. In the final question it asks us to differentiate the height formula. The Dh/dt = 10-2t. This formula should give speed, but in the next question instead of asking for max speed it asks for max height AGAIN?

    I think these are two of possibly a few mistakes on the paper. So they're guaranteed marks for you people worrying!

    I was the same, I spent ages on the "sum of the first n series" and my formula didn't work and I don't think I made any mistake.


  • Registered Users, Registered Users 2 Posts: 58 ✭✭cferry3


    You know for Q3 A(i) was x equal to 5

    Think I got -5


  • Registered Users, Registered Users 2 Posts: 18 Catherinem1616


    cferry3 wrote: »
    Think I got -5

    So did I!


  • Registered Users, Registered Users 2 Posts: 284 ✭✭skippy1977


    For part 7 was the formula F= 20,000(1-0.15)to the power of 4?

    Yep that's it.


  • Registered Users, Registered Users 2 Posts: 96 ✭✭Nick_1494


    scareyc wrote: »
    i said the length and width were both = 12-h because it said in terms of h..i then proceeded to draw a lovely 3-D box for the examiner

    Would it not be 12-2h because you had to take both sides into account


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  • Registered Users, Registered Users 2 Posts: 284 ✭✭skippy1977


    Sn=14n-n^2

    in the next part let = 0 and solve

    you get n=0 and n=14

    For the max height you find out at what time the speed is 0 (as this is when it's at its max height), in this case 2t=10, t=5 seconds and sub that into height formula to get 25....same answer as reading from the graph on previous page.

    Q3 was -5 too


  • Registered Users, Registered Users 2 Posts: 284 ✭✭skippy1977


    3D box question the length was 12-2h....as it was a square base so was the width...and when you fold up the sides the height is h.
    Volume of a rectangular solid is l x b x h

    so h(12-2h)(12-2h) gives the volume formula in the question.


  • Registered Users, Registered Users 2 Posts: 28 HelenAnn


    Badwulf wrote: »
    Was there anyone here who could actually do that cardboard box question? no one in my school could get it either :P HELLO NICE BELL CURVE, also I need to know guys do they give out attempt marks easily?

    Length : 12 - 2h
    Width: 12 -2h
    Height(given): h

    Volume: multiplied l x w x h

    h value which gives max volume: Differentiated volume formula and put quadratic equal to 0. Got 2 and 6 but if you put 2 into volume formula you got 0 so 6 was the correct answer.

    Max volume: substituted 6 as height into volume formula.


  • Registered Users, Registered Users 2 Posts: 18 scareyc


    Nick_1494 wrote: »
    Would it not be 12-2h because you had to take both sides into account

    Ah sh*te. You're probabnly right, hopefully I'll still get an attempt mark


  • Registered Users, Registered Users 2 Posts: 284 ✭✭skippy1977


    HelenAnn wrote: »
    Length : 12 - 2h
    Width: 12 -2h
    Height(given): h

    Volume: multiplied l x w x h

    h value which gives max volume: Differentiated volume formula and put quadratic equal to 0. Got 2 and 6 but if you put 2 into volume formula you got 0 so 6 was the correct answer.

    Max volume: substituted 6 as height into volume formula.

    You get 2 and 6 but 6 doesn't work as the width of the box is 12-2h....12-2(6)=0 therefore h must be 2. Sub in and you get 128 for the volume.


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  • Registered Users, Registered Users 2 Posts: 28 HelenAnn


    skippy1977 wrote: »
    You get 2 and 6 but 6 doesn't work as the width of the box is 12-2h....12-2(6)=0 therefore h must be 2. Sub in and you get 128 for the volume.

    Thanks, that must be what I meant! Forgot which one it was :)


  • Registered Users, Registered Users 2 Posts: 2,861 ✭✭✭FlyingIrishMan


    Are you not meant to derive the equation twice, then sub in each value to get max and min? That's what I did and it came out with 2 as the max, and putting that back into the original volume formula gave something like 120.
    Even looking at the diagram of the box it definitely didn't look like h was 6.


  • Registered Users, Registered Users 2 Posts: 284 ✭✭skippy1977


    In no particular order:

    Area and Volume
    Constructions (about 20 of them, some of the repetitive)
    Geometry (including a few definitions....what's a theorem, an axiom, the converse)
    Trigonometry (Pythagoras, TOASOHCAH, Sine Rule, Cosine Rule, Area of Triangle)
    Enlargements/ Transformations
    Probability
    Statistics
    Co-Ordinate Geometry - The Line and Circle (real formula question, distance, slope, midpoint, equation of line, equation of circle)

    The last 3 questions may well mix Probability/ Statistics and Geometry/ Trigonometry
    The only choice you will be given is between 6A and 6B (geometry question)


  • Registered Users, Registered Users 2 Posts: 29 Jackson07


    With paper one out of the way, I was wondering could someone post what topics come up in paper two?

    I think the trapezoid rule could come up and maybe a statistics question like mean median mode stuff


  • Registered Users, Registered Users 2 Posts: 2,390 ✭✭✭Doublechinlolz


    Nick_1494 wrote: »
    Would it not be 12-2h because you had to take both sides into account

    Yeah I said that. Then for the volume I ended up differentiating it, turning it into a quadreatic equation and finding h=2

    Felt like a pure genius doing it but its probably wrong still haha


  • Closed Accounts Posts: 3,799 ✭✭✭onethreefive


    If the answer to part Q3 a (ii) was -5 and i got 5 and only made a small mistake by forgetting the minus or something similar would i still get a good few marks?


  • Registered Users, Registered Users 2 Posts: 307 ✭✭Saxo


    skippy1977 wrote: »
    You get 2 and 6 but 6 doesn't work as the width of the box is 12-2h....12-2(6)=0 therefore h must be 2. Sub in and you get 128 for the volume.

    I took a wild guess and fired in 128 after messing about on the calculator as my answer without really working it out, how many marks dyou think ill get for this?


  • Registered Users, Registered Users 2 Posts: 121 ✭✭miissjuly


    I was doing Higher Level and never seen how ordinary papers look like I'm so screwed I feel ashamed for not comprehending ordinary level maths I thought I would get an A. I bloody wanna DIE! I need at least a B :( is it possible to get an A2 with paper 2?!


  • Registered Users, Registered Users 2 Posts: 44 lizzmurph


    On the first page for question one was the answer to part three, the profit mark up percentage 17% ??


  • Registered Users, Registered Users 2 Posts: 96 ✭✭Nick_1494


    miissjuly wrote: »
    I was doing Higher Level and never seen how ordinary papers look like I'm so screwed I feel ashamed for not comprehending ordinary level maths I thought I would get an A. I bloody wanna DIE! I need at least a B :( is it possible to get an A2 with paper 2?!

    It depends on how badly you did. They both carry equal marks so unless you got atleast a b1 you can't get an a2, even with an a1 in paper 2.


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  • Registered Users, Registered Users 2 Posts: 18 scareyc


    miissjuly wrote: »
    I was doing Higher Level and never seen how ordinary papers look like I'm so screwed I feel ashamed for not comprehending ordinary level maths I thought I would get an A. I bloody wanna DIE! I need at least a B :( is it possible to get an A2 with paper 2?!

    look up the OL sample paper 2. The sample paper in the OL Edco book was pretty similar to the one questions in the exam..


  • Registered Users, Registered Users 2 Posts: 62 ✭✭RAnderson1995


    jazz101 wrote: »
    But.. the second choice was better? That's the only question I was certain of on the paper. The second choice was definitely better. There was about a one hundred euro difference.

    I chose the second option as well! thank god!


  • Registered Users, Registered Users 2 Posts: 62 ✭✭RAnderson1995


    This went way worse than my mocks, during the Mocks i was finished in an HOUR! like completely, yet today i found i really needed to read the questions and i used the whole 2 1/2 hours! I got 83% in my mocks and am looking for an A, i don't need it i just want it! I answered everything today but i'm positive some of it was wrong! oh well can't change it now!!


  • Registered Users, Registered Users 2 Posts: 35 crolekka


    miissjuly wrote: »
    I was doing Higher Level and never seen how ordinary papers look like I'm so screwed I feel ashamed for not comprehending ordinary level maths I thought I would get an A. I bloody wanna DIE! I need at least a B :( is it possible to get an A2 with paper 2?!

    I dropped down to OL today without seeing the exam before after doing Higher Level for the previous 2 years. All I knew was that there'd be short questions followed by contexts and applications just like HL. Overall I found the paper very easy after getting 37% in the mocks for HL. I don't know your situation but if anything I sense you must've panicked. Seeing something new and laid out in a simpler fashion must've caught you completely off guard because at HL you're almost looking for stuff that attempts to trick you! Read the question multiple times and it may start to click, the financial maths for example took me a good few attempts before I knew what to do.

    Make sure you look at what Paper 2 requires at OL and go over it before Monday. It's unfortunate that you mightn't get the B you need but you can definitely get closer if you have a calm, steady and prepared stab at it because I presume you know most of the stuff!


  • Registered Users, Registered Users 2 Posts: 29,509 ✭✭✭✭randylonghorn


    As this thread is a very reasonable length compared to other years, we may as well use it for Paper 2 as well and save proliferation of threads, it gets hard enough to find threads on the forum at this time of year.


  • Registered Users, Registered Users 2 Posts: 13 Rainydays212


    hi guys,
    I've been doing grinds since january and today for the ordinary level paper I was so disappointed. I was quite over-whelmed looking at the paper, as I found it to be much more difficult then I intended and a lot of the stuff I looked over never came up. I attempted every question though but am terrified I failed. All I want is a pass-D3. I'm hoping with a lot of work over the weekend i can make up for it in paper 2. I hear though they want everyone to pass and give attempt marks easily- is this true? I think I am being hard on myself but really was annoyed today, I almost got sick in the exam. I also hear you only need 38% to pass...is this true?
    thank you :)


  • Registered Users, Registered Users 2 Posts: 18 scareyc


    hi guys,
    I've been doing grinds since january and today for the ordinary level paper I was so disappointed. I was quite over-whelmed looking at the paper, as I found it to be much more difficult then I intended and a lot of the stuff I looked over never came up. I attempted every question though but am terrified I failed. All I want is a pass-D3. I'm hoping with a lot of work over the weekend i can make up for it in paper 2. I hear though they want everyone to pass and give attempt marks easily- is this true? I think I am being hard on myself but really was annoyed today, I almost got sick in the exam. I also hear you only need 38% to pass...is this true?
    thank you :)

    Im in the same boat as you, just want to pass. I got 38% in the mocks which is a fail. 40% is a pass, but some say that if you're at 38% they'll boost you up to a pass. Im just gonna completely cram paper 2 this weekend and hope to raise my grade..


  • Registered Users, Registered Users 2 Posts: 13 Rainydays212


    scareyc wrote: »
    Im in the same boat as you, just want to pass. I got 38% in the mocks which is a fail. 40% is a pass, but some say that if you're at 38% they'll boost you up to a pass. Im just gonna completely cram paper 2 this weekend and hope to raise my grade..

    glad I am not the only one :) I had geography this morning as well so couldn't really study for maths but we do have a lot of time this weekend to study it, even if it means ignoring the study for other exams! we can do this..I genuinely thought the paper today was wicked though. Hopefully a easy-ish paper 2 :/


  • Registered Users, Registered Users 2 Posts: 27 Milfhunter


    Buataisti wrote: »
    Fairly certain the final long question had a mistake printed. After asking you to differentiate it then asks for the maximum height of the rocket, which has already been given. I think it was supposed to ask for the maximum speed given the question prior to it.

    You were suppose to find the maximum height mathematically. I got it, I think you had to defrenciate twice maybe.


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  • Registered Users, Registered Users 2 Posts: 18 scareyc


    glad I am not the only one :) I had geography this morning as well so couldn't really study for maths but we do have a lot of time this weekend to study it, even if it means ignoring the study for other exams! we can do this..I genuinely thought the paper today was wicked though. Hopefully a easy-ish paper 2 :/

    Me too! Only had 30 mins to study for it and couldnt look at it yesterday cuz I want an A in geography, priorities..


  • Registered Users, Registered Users 2 Posts: 58 ✭✭cferry3


    skippy1977 wrote: »
    Sn=14n-n^2

    in the next part let = 0 and solve

    you get n=0 and n=14

    For the max height you find out at what time the speed is 0 (as this is when it's at its max height), in this case 2t=10, t=5 seconds and sub that into height formula to get 25....same answer as reading from the graph on previous page.

    Q3 was -5 too

    Got all that!!
    lizzmurph wrote: »
    On the first page for question one was the answer to part three, the profit mark up percentage 17% ??

    Got like 10.9 % doubt it's right!


  • Registered Users, Registered Users 2 Posts: 1 Cfc25


    For question 3a i got 5 instead of -5, how many marks will i lose?


  • Registered Users, Registered Users 2 Posts: 91 ✭✭ave123


    did anyone get the last part in the question on complex number question?...the one where they ask you to find Z3...i spent ages on that question and i couldnt get it out:/


  • Registered Users, Registered Users 2 Posts: 2,861 ✭✭✭FlyingIrishMan


    ave123 wrote: »
    did anyone get the last part in the question on complex number question?...the one where they ask you to find Z3...i spent ages on that question and i couldnt get it out:/

    I think all you had to do was re-arrange the formula they gave you, so it was like Z3 = Z2/Z1.

    Don't remember what answer I got though.


  • Registered Users, Registered Users 2 Posts: 58 ✭✭cferry3


    ave123 wrote: »
    did anyone get the last part in the question on complex number question?...the one where they ask you to find Z3...i spent ages on that question and i couldnt get it out:/

    Yeah I think I got it, -1+4i is what I got..


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  • Registered Users, Registered Users 2 Posts: 3 Katyegg


    Does anyone have any idea what to expect for paper 2?


  • Registered Users, Registered Users 2 Posts: 121 ✭✭miissjuly


    crolekka wrote: »
    I dropped down to OL today without seeing the exam before after doing Higher Level for the previous 2 years. All I knew was that there'd be short questions followed by contexts and applications just like HL. Overall I found the paper very easy after getting 37% in the mocks for HL. I don't know your situation but if anything I sense you must've panicked. Seeing something new and laid out in a simpler fashion must've caught you completely off guard because at HL you're almost looking for stuff that attempts to trick you! Read the question multiple times and it may start to click, the financial maths for example took me a good few attempts before I knew what to do.

    Make sure you look at what Paper 2 requires at OL and go over it before Monday. It's unfortunate that you mightn't get the B you need but you can definitely get closer if you have a calm, steady and prepared stab at it because I presume you know most of the stuff!

    Yes it took me awhile to do the Question on Mary. I was flying through the first few pages then had to start thinking a little but of course it was way easier than Higher Level. Do they have a bell curve for grades like they can only give out certain amount of A's? :(


  • Registered Users, Registered Users 2 Posts: 11 hontheroyalz


    Paper 2 predictions:

    trapezodial rule

    trigonometry long question, will include sine+cosine rule,SOH,pythagoras maybe similar triangles

    Probabilty will be basic just know stem and leaf diagrams and and=multiply or=add

    Co-ordinate geometry will unfortunately have everything i'd say..


  • Registered Users, Registered Users 2 Posts: 109 ✭✭caolan1996


    what topics can come up in paper 2? do u think inequalities will come up seen it did not come up in p1


  • Registered Users, Registered Users 2 Posts: 11 maigheo2014


    Did anyone else use the extra paper for rough work and hand it up? And if so what's the story with it..is there attempt marks for parts of that too?


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  • Registered Users, Registered Users 2 Posts: 35 crolekka


    miissjuly wrote: »
    Yes it took me awhile to do the Question on Mary. I was flying through the first few pages then had to start thinking a little but of course it was way easier than Higher Level. Do they have a bell curve for grades like they can only give out certain amount of A's? :(

    Oh well that's good and I wouldn't be too worried :) As for the bell curve I'm not sure as I've heard differing points of view. The failure rate seems to be much lower in maths than other subjects though. I think examiners will try their best to pass you or increase your grade if you're close but of course they can't give marks if nothing's written down.


  • Registered Users, Registered Users 2 Posts: 50 ✭✭KellyR18


    cferry3 wrote: »
    Got all that!!



    Got like 10.9 % doubt it's right!

    I got 10.9%


  • Registered Users, Registered Users 2 Posts: 411 ✭✭Badwulf


    So do the markers actually give you marks for solid and decent attempts in the real thing? Because they didn't for our mocks :/


  • Registered Users, Registered Users 2 Posts: 52 ✭✭neonmaria


    I thought the end of the financial maths question was very unclear :/


  • Registered Users, Registered Users 2 Posts: 13 rossman33


    Hi.
    For what its worth here are my thoughts on Paper 2 and what I feel you should definitely have a good working knowledge on for paper 2 as a minimum

    Statistics
    stem and leaf, skews negative and positive
    Mode mean median( remember to add the middle two values and divide by two)
    scatter plots and correlation coefficient
    empirical rule note mean and one standard deviation is 68%
    mean and two SD is 95%
    mean and three SD is 98% i think check it in the books im going from memory

    co ordinate geom line and circle together
    formulas in tables use them
    probably finding equation of circle of centre (h,k) rad r and finding equation of tangent to it at a point on the circle. remember to invert the slope of the line from the centre and change sign

    Geometry
    enlargements scale factor and remember area increases or decreases by (scale factor)squared
    Nets definitely will be there somewhere i think it could be a cornetto wrapper so dont forget the circle on top, know what i mean and the trapesium rule maybe from a cubic graph

    NB Question 6
    construct the circumcircle after drawing a triangle ( remember to bisect any two sides)
    or
    construct the incircle ( bisect any two angles)
    always show all construction lines, if it doesnt touch perfectly all you will lose is 3/25 marks

    trigonometry
    anything can come up, using the rules sin and cosine rules, find the sample q on the 5 story building with fred and barry in the sample papers its a good one. also know how a clinometer works and how to use it be able to describe its operation

    another point
    dont leave anything blank on paper 2, if you havent a clue make something up thats relevant, it may get some marks but a blank answer can get nothing.
    good luck


  • Registered Users, Registered Users 2 Posts: 52 ✭✭neonmaria


    I got something really high like 75% for the profit mark up have a feeling I was way off though


  • Registered Users, Registered Users 2 Posts: 2,861 ✭✭✭FlyingIrishMan


    neonmaria wrote: »
    I got something really high like 75% for the profit mark up have a feeling I was way off though

    I got a markup of around 75% too.

    The total he made from selling 22 sets at normal prices + the 3 remaining sets discounted at 20% was around 2100. And then I just got the percentage difference between the original 1250 and the new total with the discounted sets.


  • Registered Users, Registered Users 2 Posts: 8 HassanNat95


    What topics come up for paper 2?


  • Registered Users, Registered Users 2 Posts: 52 ✭✭neonmaria


    I got a markup of around 75% too.

    The total he made from selling 22 sets at normal prices + the 3 remaining sets discounted at 20% was around 2100. And then I just got the percentage difference between the original 1250 and the new total with the discounted sets.

    ya that's what I did aswell at least that question was fairly good


  • Registered Users, Registered Users 2 Posts: 13 rossman33


    mark up was 75.58%


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