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Mr M's Edexcel GCSE Linear 1380 Higher Tier Paper 3 Answers June 2011

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    (Original post by Instincts_2012)
    Mr M, it says 38.4kg, will I still get full marks if I wrote 38400grams?
    yes
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    (Original post by M.Malik)
    overall??
    i havent seen the other paper so how do you possibly expect me to guess how many marks you need for a B on that one?

    50% on THIS paper approx
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    (Original post by Peak27)
    Dont take my word for it, i'm a student who did the test lol and it was hard! it has got to be lower than last years 103! Agree?
    yh definetely
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    (Original post by Mr M)
    i havent seen the other paper so how do you possibly expect me to guess how many marks you need for a B on that one?

    50% on THIS paper approx
    noo i mean like a guess wat u need overall so last years was 103 this year would it be 95 or sumfin???
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    (Original post by M.Malik)
    noo i mean like a guess wat u need overall so last years was 103 this year would it be 95 or sumfin???
    I can't guess about something I haven't seen. The next paper could be very easy pushing the boundaries right up.
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    kkk
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    (Original post by Mr M)
    Revision List for GCSE Higher Calculator Maths Exam on 10th June 2011


    Grade D
    Using a calculator
    Pie charts
    Stem and leaf diagrams
    Percentages
    Plans and elevations
    Area and circumference of a circle
    Probability
    Plotting a graph from a table of values
    Rotations or enlargements


    Grade C
    Trial and improvement
    Expressing a number as the product of its prime factors
    Forming and solving an equation
    Pythagoras’ Theorem
    Mean from a frequency table
    Speed, distance and time
    Perpendicular bisector


    Grade B
    Standard form
    Moving averages
    Circle theorems
    Trigonometry
    Loci
    Probability tree diagrams
    Quadratic formula
    Dimensions


    Grade A
    Sine Rule, Cosine Rule or area of a scalene triangle
    Direct and inverse proportion
    Stratified sample


    Grade A*
    Upper and lower bounds
    Graph transformations
    If I revise all of that and do past papers is there anything else I should revise or have you listed all the topics that could possibly be on there?
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    (Original post by Mr M)
    I can't guess about something I haven't seen. The next paper could be very easy pushing the boundaries right up.
    2. Scatter graph
    b) 7.5 hours (or an answer close to this) (2 marks) I drew a line of best fit and wrote '8 hours', will I receive 2 marks?

    3. Angles in parallel lines
    b) Corresponding angles OR F angles (2 marks) I could not remember the word 'corresponding' so I wrote 'Angles on a straight line add up to 180 degrees. 180 degrees - 55 degrees = 125 degrees. Interior angles add up to 180 degrees. 180 degrees - 125 degrees = 55 degrees'. Will I receive 1 mark for q2.b)?

    8. Questionnaire
    b) People at the swimming pool are likely to have an active lifestyle (1 mark) I wrote: 'People are the swimming pool obviously like to go swimming so probably do more exercise than the average person'. Will I receive the mark?

    10. Mass of a prism
    38.4 kg (5 marks) Will 38,400 grams receive all 5 marks?

    12. Indices
    (b) (2 marks) Will '4x^-1' receive 2 marks?

    13. Frequency Polygon
    Plotted correctly at midpoints of the weight intervals (2 marks) I think I plotted the correct points, but at the end point of the intervals. How many marks will I receive?

    17. Geometrical Proof
    Use angle sum of triangle equals 180 degrees to prove result (3 marks) This question had horrible wording! I did not understand it at all!

    20. Box Plots
    Two correct comparisons such as the medians are the same and the interquartile range of the girls is smaller than that of the boys. (2 marks) I commented on the means (averages) being the same and the range of the boys being larger than the girls. How many marks will I receive?

    21. Equation of a straight line
    a) Gradient (2 marks) I put '1/2' (ie. I did not include the minus sign). How many marks will I receive?

    b) (2 marks) Will there be error carried forward for '+1/2'x rather than '-1/2'x?

    25. 3D shapes
    (4 marks) I got the equations right, but left it as I did not find 'h'.

    26. Vectors
    b) Show parallel vector (3 marks) I worked out '1.2a + 1.2b' and wrote they had the same direction and same multitude (I should have written a multiple!) as 'a + b'. How many marks will I receive out of 3?

    27. Algebraic fraction
    x = 3 or x = -2 (4 marks) How many marks, if any, would I get for making the denominators equal?

    I would be so grateful if you could answer my questions Mr M! Sorry that there are so many!

    Thank you so much (in advance)!

    Why did I get negged? Sorry if this post was too long; I am simply very worried about my result and I have a lot of questions!
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    (Original post by ITomI)
    If I revise all of that and do past papers is there anything else I should revise or have you listed all the topics that could possibly be on there?
    u can be tested on ANYTHING in the specification - it is huge
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    Mr.M, u know for question 2b-I wrote 7 hours 36minutes. I read the graph at 7.6 hours will i get the full marks for this question?
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    I think MrM should get the TSR award or somthing like Maths section award...I did crap on this paper btw (60%)..but none the less..I think MrM should get somthing for being like really good person..
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    (Original post by king101)
    I think MrM should get the TSR award or somthing like Maths section award...I did crap on this paper btw (60%)..but none the less..I think MrM should get somthing for being like really good person..
    I think so too.
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    Is this paper marked on raw or UMS marks? I think I got 93+ or higher so that's probably an A* in raw marks but are UMS higher because some of my friends are worrying about their marks.
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    (Original post by hyn_shayan)
    Is this paper marked on raw or UMS marks? I think I got 93+ or higher so that's probably an A* in raw marks but are UMS higher because some of my friends are worrying about their marks.
    marks are given in raw marks.
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    Hey Mr M, do you think you can help me out with Question 17 and 25, like show me the working out to the question cuz incase it might come up again on the friday paper. Plz help me out ! Thank you.
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    (Original post by hyn_shayan)
    I think I got 93+ or higher so that's probably an A* in raw marks
    you are a genius, man! :congrats::hat2:
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    Mr.M, u know for question 2b-I wrote 7 hours 36minutes. I read the graph at 7.6 hours will i get the full marks for this question?
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    (Original post by estudiante_numero1)
    2. Scatter graph
    b) 7.5 hours (or an answer close to this) (2 marks) I drew a line of best fit and wrote '8 hours', will I receive 2 marks? yes

    3. Angles in parallel lines
    b) Corresponding angles OR F angles (2 marks) I could not remember the word 'corresponding' so I wrote 'Angles on a straight line add up to 180 degrees. 180 degrees - 55 degrees = 125 degrees. Interior angles add up to 180 degrees. 180 degrees - 125 degrees = 55 degrees'. Will I receive 1 mark for q2.b)? possibly if you drew them on the diagram

    8. Questionnaire
    b) People at the swimming pool are likely to have an active lifestyle (1 mark) I wrote: 'People are the swimming pool obviously like to go swimming so probably do more exercise than the average person'. Will I receive the mark? yes
    10. Mass of a prism
    38.4 kg (5 marks) Will 38,400 grams receive all 5 marks? yes

    12. Indices
    (b) (2 marks) Will '4x^-1' receive 2 marks? yes

    13. Frequency Polygon
    Plotted correctly at midpoints of the weight intervals (2 marks) I think I plotted the correct points, but at the end point of the intervals. How many marks will I receive? 1 mark

    17. Geometrical Proof
    Use angle sum of triangle equals 180 degrees to prove result (3 marks) This question had horrible wording! I did not understand it at all! zero then

    20. Box Plots
    Two correct comparisons such as the medians are the same and the interquartile range of the girls is smaller than that of the boys. (2 marks) I commented on the means (averages) being the same and the range of the boys being larger than the girls. How many marks will I receive? not means so no mark there, range is worth 1 mark

    21. Equation of a straight line
    a) Gradient (2 marks) I put '1/2' (ie. I did not include the minus sign). How many marks will I receive? 1 mark

    b) (2 marks) Will there be error carried forward for '+1/2'x rather than '-1/2'x? probably

    25. 3D shapes
    (4 marks) I got the equations right, but left it as I did not find 'h'. you will get some credit then

    26. Vectors
    b) Show parallel vector (3 marks) I worked out '1.2a + 1.2b' and wrote they had the same direction and same multitude (I should have written a multiple!) as 'a + b'. How many marks will I receive out of 3? 2 marks or 3 with a generous examiner

    27. Algebraic fraction
    x = 3 or x = -2 (4 marks) How many marks, if any, would I get for making the denominators equal? 1 mark

    I would be so grateful if you could answer my questions Mr M!

    Thank you so much (in advance)!
    answers above
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    (Original post by nm786)
    Mr.M, u know for question 2b-I wrote 7 hours 36minutes. I read the graph at 7.6 hours will i get the full marks for this question?
    that is ok i think
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    (Original post by king101)
    I think MrM should get the TSR award or somthing like Maths section award...I did crap on this paper btw (60%)..but none the less..I think MrM should get somthing for being like really good person..

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