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D1 (Decision 1) 17 May 2013 Official Thread Watch

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    Can someone check , I THINK there is a mistake on one of the linear programming questions
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    (Original post by otrivine)
    Can someone check , I THINK there is a mistake on one of the linear programming questions
    Not sure if serious...nah kidding

    Practice Papers

    Attached Files Practice Paper A.pdf (222.5 KB, 644 views)
    Practcie Paper A AB.pdf (280.5 KB, 622 views)
    Practice Paper B.pdf (251.3 KB, 426 views)
    Practice Paper B AB.pdf (202.9 KB, 240 views)
    Specimen.pdf (180.7 KB, 532 views)
    Specimen AB.pdf (157.6 KB, 220 views)
    Mock Paper.pdf (297.5 KB, 611 views)
    Mock Paper AB.pdf (280.6 KB, 490 views)
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    From Arsey: http://www.thestudentroom.co.uk/show....php?t=1865487


    Adapted old Spec papers

    Attached Files 06 JAN ADAPTED.docx (33.8 KB, 434 views)
    06 JUNE Adapted.docx (26.3 KB, 188 views)
    07 JUNE Adapted.docx (128.7 KB, 276 views)
    08 JAN ADAPTED.docx (206.0 KB, 398 views)
    08 MAY ADAPTED.docx (86.1 KB, 359 views)


    37 D1 June 2008 mark scheme.doc (530.0 KB, 79 views)
    23 D1 mark scheme Jan 2007.pdf (292.0 KB, 40 views)
    39 D1 January 2006 Mark Scheme.pdf (91.2 KB, 474 views)
    D1 June 2005 mark scheme.pdf (321.0 KB, 683 views)
    11 D1 November 2004 mark scheme.pdf (111.7 KB, 285 views)
    39 D1 mark scheme June 2004.doc (417.0 KB, 288 views)
    23 D1 mark scheme January 2004.doc (93.5 KB, 326 views)
    11 D1 November 2003 mark scheme.doc (409.5 KB, 186 views)
    40 D1 mark scheme June 2003.doc (329.5 KB, 85 views)
    23 D1 January 2003 mark scheme.doc (138.0 KB, 98 views)
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    (Original post by Marakh)
    What exams you doing this summer?
    (In order)
    AS AQA Physics: practical/practical written, Unit 1.
    AS Edexcel Maths: C1 retake, C2, D1.
    AS OCR Computing: F451, F452.
    A2 WJEC Film.

    I'm aiming for Physics: A, Maths: A, Computing: A, Film: A/B.

    Aaaannnd, I'm screwed :P


    What about you?
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    (Original post by Cnut)
    (In order)
    AS AQA Physics: practical/practical written, Unit 1.
    AS Edexcel Maths: C1 retake, C2, D1.
    AS OCR Computing: F451, F452.
    A2 WJEC Film.

    I'm aiming for Physics: A, Maths: A, Computing: A, Film: A/B.

    Aaaannnd, I'm screwed :P


    What about you?
    I am taking A2 Edexcel Maths, AS AQA Physics and AS Edexcel Chemistry
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    Remember that the Solomon papers are the old spec. Avoid questions about planarity, Simplex or flows in networks
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    (Original post by tiny hobbit)
    Remember that the Solomon papers are the old spec. Avoid questions about planarity, Simplex or flows in networks
    Didn't know that thanks for the heads up....

    Which exact Papers can I do then???
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    Also does anyone know what Chapter 2 Definitions have come up in the exams yet?

    I.e. will we need to know the definition of a Spanning Tree etc etc
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    How many past papers has everyone done?
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    (Original post by Better)
    How many past papers has everyone done?
    Idiotically, I haven't done any ;(
    I was concentrating on chemistry and biology last week and I'm hoping to focus only on maths this week...

    How about you??


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    (Original post by m.dot.mak)
    Idiotically, I haven't done any ;(
    I was concentrating on chemistry and biology last week and I'm hoping to focus only on maths this week...

    How about you??


    Posted from TSR Mobile
    None yet but I've done all the Practice Questions from the book.

    Going to do a Full past Paper timed now 1:30-3.00PM. Ideally I will have around 4/5 done by the end of this week and then I will just do 2 a week from then until the exam.

    Yeh I've been focusing on Physics this week, but D1 is my first exam so need to dominate it.
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    Can anyone help me on D1 Scheduling.

    Its not so cclear???
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    (Original post by tiny hobbit)
    Remember that the Solomon papers are the old spec. Avoid questions about planarity, Simplex or flows in networks
    Can anyone help me on Scheduling???
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    (Original post by Better)
    Yeah two books sounds a bit OCD to me?

    How are you guys going to structure your revision? End of Chapter Questions? etc etc
    thats not OCD
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    i havent done any D1 past papers yet
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    (Original post by study beats)
    i havent done any D1 past papers yet
    Haven't you? I've done 2 now, just going over my weaknesses.

    Again need help on Scheduling, maybe another D1 book would have been useful
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    (Original post by Better)
    Haven't you? I've done 2 now, just going over my weaknesses.

    Again need help on Scheduling, maybe another D1 book would have been useful
    same here, the only thing i didnt get from edexcel D1 book was scheduling, they didnt even tell u what to do?

    also how are the past papers?
    and how many do u reckon need to be done for 80 UMS?
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    (Original post by study beats)
    same here, the only thing i didnt get from edexcel D1 book was scheduling, they didnt even tell u what to do?

    also how are the past papers?
    and how many do u reckon need to be done for 80 UMS?
    Just marked the Practice Paper I did got 52/75, marking really really strictly. Practice Paper A.

    Well some years its 67/75 for an A. So it should take around 3 Practice Papers + Real 5 Papers to consistently be in the 65+ Range.

    I think D1 is pretty different to C3 and C4. D1 if you just understand your mistakes first time round its pretty hard to make the same mistakes again as its very very systematic. I jumped like 20 marks from the Mock we did in school so I am pleased even though by the grade boundaries standards its like a C.
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    Can anyone help me on Question 3 part C

    "State with a reason, which of the two vertices should be chosen to minimise the length of the new route".

    The mark scheme isn't very clear at all. I thought if you did this you are essentially eliminating 2/4 nodes, hence you want to pick the 2 Odd Nodes with the Path between them of lowest weight.

    In the markscheme they pick the path of heighest weight.

    Practice Paper A.pdf (222.5 KB, 644 views)

    D1 practice paper A mark scheme.doc
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    (Original post by Better)
    Just marked the Practice Paper I did got 52/75, marking really really strictly. Practice Paper A.

    Well some years its 67/75 for an A. So it should take around 3 Practice Papers + Real 5 Papers to consistently be in the 65+ Range.

    I think D1 is pretty different to C3 and C4. D1 if you just understand your mistakes first time round its pretty hard to make the same mistakes again as its very very systematic. I jumped like 20 marks from the Mock we did in school so I am pleased even though by the grade boundaries standards its like a C.

    i think D1 is much much easier than C3 and C4, infact working through the book, i found it as easy as C1..

    ur right, its not like core maths at all.....in fact u dont need much maths knowledge to do it anyway....
 
 
 
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