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Mr Williams’ predictions for calc paper 2015

Predictions for the Calculator paper 2015

This is my best guess as to the topics that will be covered in the second paper. Notice it is just my best guess please don’t rely on this absolutely!

Number

  • Do a hard calculation using the calculator and show all of the      digits from the screen then round it
  • Compound interest. In recent year they have split the question so      it might say in the first year the interest rate is 5% and then in all the      years that follow it is 3%. They have also asked questions comparing      simple and compound interest.
  • Reverse percentage
  • Equivalence of decimals, fractions and percentages.
  • Ratios. Read the question carefully!
  • A context question with calculations such as percentages and      fractions – check your QWC
  • Proportion eg S is proportional to the square of t
  • Bounds calculations. Pick out the right combination of upper and      lower bounds for the calc.

 

Algebra

 

  • Trial and improvement
  • Solve a quadratic using the formula
  • There is usually a page of algebra involving factorising,      expanding, simplifying and solving etc
  • Forming an equation from a situation and then solving it. Eg the      sides are given algebraically and you are given the value of the      perimeter.
  • An algebraic proof question
  • Completing the square (and maybe using it to find the lowest value      an expression can produce)P
  • Plotting a harder graph eg a      quadratic curve. Or maybe finding the equation of a line through two      points.

 

Shape and space

 

  • Trigonometry and Pythagoras’ – possibly questions that disguise the      technique required
  • Advanced trig – sine rule and cosine rules and don’t forget the      area formula
  • Similar triangles question. Or prove that the triangles are      congruent with ASA, SAS, SSS, RHS etc
  • Area of circle in some form e.g. find the area of a sector
  • Loci –construct a triangle using compasses, the perpendicular      bisector, the angle bisector, points that are equidistant from a point and      also from a line
  • Volumes and surface areas of solids – could involve similar solids,      so make sure you know how the scale factors are related to each other.
  • Vectors – often set up within      a triangle; make sure you can work out the vector for the third side if      you know the other two.

 

Statistics and Probability

  • Histograms
  • Averages from a frequency table or a grouped frequency table
  • Sampling
  • A more basic graph type such as a Pie chart or a frequency polygon
  • Tree diagram or sample space      diagram eg Possible to have a two dice question or an equivalent

 

MyMaths Password Change

Please note that the top-level password for MyMaths has been changed.
Please check your school email for the new one!

Thanks, and hope you’re having a great summer.

KB

Stats GCSE – June 2012 Mark Scheme

The MS for the 2012 paper can be found here.

Other past papers from Edexcel (with markschemes) are here - follow the links and stuff on that page.

Good luck! I’ll get the revision sheets sorted too.

Protected: Stats GCSE Worksheet Answers

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Year 11 – predictions for the calculator paper

Dear yr 11,

I hope your first paper went well and that you felt well prepared.

Here is what i think is going to be in the second paper. Please note that this is only a guess based on what was not in the first one. I hope it is helpful.

MW

 

Number

-    Do a hard calculation using the calculator and show all of the digits from the screen then round it

-    Compound interest

-      Reverse percentage

-       Ratios

-    A context question with calculations such as percentages and fractions – check your QWC

-   Proportion eg S is proportion to the square of t

-   Bounds calculations

Algebra

-   Trial and improvement

-    Solve a quadratic using the formula

-    There is usually a page of algebraic questions that you require you to demonstrate factorising, expanding, simplifying etc

-    An algebraic proof question

Shape and space

-     Trigonometry and Pythagoras’ – possibly questions that disguise the technique required

-      Advanced trig – don’t forget the area formula

-      Angles on parallel lines

-       Area of circle in some form e.g. find volume of a cylinder or find the area of a sector

-       Volumes and surface areas of solids  -   could involve similar solids

-       A compound measures question e.g. speed or density or flow rate

Statistics

-     Cumulative frequency

-     Histograms

-      Averages from a frequency table or a grouped frequency table

-      Sampling

-      A more basic graph type such as a Pie chart or a frequency polygon

Probability

-      As the tree was on the first paper I think that there will be basics such as predicting the number of times a particular result occurs

-     Possible to have a two dice question or an equivalent

Yr 8 hwk

Dear Yr 8,

 

Please spend hwk time reviewing these questions in preparation for next lesson.

 

photo2

 

Best of luck!

 

MW

Y10 Stats Markschemes

The 2007 one is here

And the 2008 one here.

Have a great half term! Happy revising! Email with any questions.
KB

Year 9 Practice Paper Solutions

Year 9 Practice paper solutions are here – good luck!

Summer mock with calc slns

Key Skills Practice for Years’ 8 and 9

Here’s a blank sheet of key skills for you to fill in a few times until you know them off by heart!

For Year 8: Key Skills

For Year 9: Key Skills 1  |  Key Skills 2

This should give you an idea of how best to revise: make sure you have learned things off by heart, and [...]

Continue reading Key Skills Practice for Years’ 8 and 9

Year 10 Stats GCSE – Key Calculations Practice

Here’s the blank sheet for practising some of the key calculations. Make sure you can do these… but don’t forget the others!