John Brennan will be sighing copies of his solutions books at the ploughing on Wednesday 20th September

We have analysed the Junior Cert Maths results 2013-2017 .The table below show the percentages getting A,ABC,D and fail . We have also plotted a scatter plot and calculated the correlation coefficient of numbers sitting the exam versus % A grade .You would think that as the numbers sitting the exam increases the % A rate would decrease but no! The % A rate actually increases. There are a number of ways of explaining this.(I)Standards have fallen ! (ii)The % rate getting A is being manipulated !

Year | A | A,B,C | D | E,F,NG | Number |

2017 | 14.1 | 74.2 | 21.5 | 4.5 | 34822 |

2016 | 11.7 | 76.3 | 20.2 | 3.5 | 32830 |

2015 | 11.3 | 74.7 | 21.1 | 4.2 | 32535 |

2014 | 10.7 | 73.00 | 22.5 | 4.5 | 32041 |

2013 | 12.0 | 78.4 | 18.4 | 3.3 | 30500 |

In question 9 Leaving Cert Higher Maths Paper 2017. Students were asked to insert scaled axes on a given diagram .The marking scheme gives 10 marks (out of 20) for drawing a vertical or horizontal axis (unscaled) or 18 marks for fully scaled vertical or horizontal axis. So why are the marks so generous?. Reason **the question cannot be done !** The information in the question is conflicting and incorrect.

We are given f(t) = a+bCosct and told that f(2)=5.5 and f(14.56) = 5.5, but using information in the question we get f(0) =5.5 ,f(2) = f(14.56) = 4.6 .It is therefore impossible to label and scale the axes .**Any student who attempted the question should receive full marks (20).**

4th/5th Year Classes Starting September 11th in Applied Maths, Maths H ,French H in Dundrum All 90 minute classes call 012960006