advertisement

HSC examination tips from a marker Mathematics R Lamaro 2014 Tip # 1 Make sure your calculator is working properly and on the correct mode before the start of the exam. Have spare batteries in your pencil case. Tip # 2 Answer all questions and save time to review answers. Check time throughout exam, after each question, or at least half way through exam. Tip # 3 Don’t spend time rubbing out or using liquid paper (or similar) for mistakes or answers that you think are incorrect. Draw a diagonal line across the answer and start the new answer on the next line. Markers are told to mark answers/solutions and then if those answers are incorrect they need to go back over any other answers provided whether crossed out or not. Marks may be awarded for correct working in crossed out responses. Eg. Solve 2x + 4 = 24 to show x = 10 (2 marks) 2x = 24 + 4 incorrect line 2x = 28 correct from above 2x = 14 x=7 1 mark awarded only 1 error in first line 2x + 4 = 28 3x = 32 x = 10 0 marks awarded New response still incorrect in all lines Tip # 4 Inherited errors Eg. Solve 2x + 4 = 24 (2 marks) Response on students paper 2x + 4 = 24 2x = 24 + 4 incorrect should be - 4 2x = 28 correct from incorrect line above 2x = 14 x=7 1 mark awarded for correct working after inherited error Tip # 5 Transcription error Eg. Solve 2x + 4 = 24 (2 marks) Response on students paper 2x + 3 = 23 or 2x + 3 = 24 2x = 20 2x = 21 x = 10 x = 10 1/2 Full marks awarded to each answer as question transcribed incorrectly to answer booklet/paper but the question was not simplified at all and all skills were completed as required. Tip # 6 Be calm and try to write something for each question you may be awarded part marks even if you cant complete the answer. No half marks are awarded in the HSC, however, if a question is worth 4 marks and you correctly use a given formula but get the wrong answer you may still be awarded 1,2, or 3 marks. Eg. Find the gradient of the tangent to y = x3 at the point where x = 2 Students response 𝑑𝑦 2 = 3x 1 mark only 𝑑𝑥 Full correct response 𝑑𝑦 2 = 3x 𝑑𝑥 Sub x=2 mT= 3 x 22 = 12 2 marks The gradient of the tangent is 12. (2 marks) Good luck