4N EMP2 2018 by Joanna Chong https://padlet.com/joannachong1_1/2dm6gua6tfze A few samples of our students’ work. More for AfL purposes so that wecan help students who might be struggling. en-us 2018-08-06 10:52:51 UTC 2025-10-03 14:12:20 UTC hello@padlet.com 4N2/13 Can’t make out student’s rules joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272064189 2018-08-06 10:54:30 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272064189 4N2/15 Confused with rules joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272064259 2018-08-06 10:56:37 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272064259 4N2/16 Product of prime factors joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272065717 This is accepted. ]]> 2018-08-06 11:27:11 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272065717 4N2/16 A couple of students have this misconception joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272065848 2018-08-06 11:29:56 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272065848 4N2/17 Marks not awarded even if x=1.5 was arrived. joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272066054 2018-08-06 11:33:29 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272066054 4N2/25 Common error mentioned above - M1 awarded for equating powers of equal bases joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272066607 2018-08-06 11:42:53 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272066607 4N3/13 Marker able to understand... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272068608 2018-08-06 12:10:41 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272068608 4N4/31 Again, mark deducted for critical step joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272074437 2018-08-06 13:14:54 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272074437 4N3/22 Student added indices instead of multiplying for Law 3 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272074679 2018-08-06 13:16:29 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272074679 4N4/23 A Long winded way to get to the answer but all steps are clearly shown joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272075726 2018-08-06 13:25:34 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272075726 4N1/23 The very often misunderstood angle of depression... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272080794 2018-08-06 14:07:55 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272080794 4N2/8 Confused with lengths and angles joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272090013 2018-08-06 15:30:49 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272090013 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272173244 2018-08-07 06:48:10 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272173244 4N1/24 Can’t recognise a quadratic equation... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272174154 2018-08-07 06:59:38 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272174154 4N2/6 Doesn’t know what to do with constant joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272179352 2018-08-07 08:08:10 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272179352 4N3/17 Student doesn’t know what the question actually wants him to do... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272179989 2018-08-07 08:18:11 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272179989 4N3/15 student doesn’t recognise the quadratic form joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272180128 2018-08-07 08:20:00 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272180128 4N4/14 Wrong cancellation... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272183112 2018-08-07 08:57:53 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272183112 4N4/6 Can’t recognise the quadratic form joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272183294 2018-08-07 09:00:40 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272183294 4N4/2 Again, can’t recognise the quadratic form joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272183368 2018-08-07 09:02:03 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272183368 4N2/12 Addition and multiplication of probabilities joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272204490 2018-08-07 13:52:08 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272204490 4N2/4 Probability Trees joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272205422 2018-08-07 13:58:41 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272205422 4N4/22 Art... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272208870 2018-08-07 14:24:54 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272208870 4N3/7 Probabilties in fractions - exact joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272211957 2018-08-07 14:49:23 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272211957 4N3/1 Probability of picking 2 coins - used the same sample space for 2nd pick - joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272212546 2018-08-07 14:53:56 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272212546 4N2/11 For description, candidates need to be specific joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272436224 2018-08-09 02:39:11 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272436224 4N2/18 Common mistake for 6(c) joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272438033 2018-08-09 02:53:10 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272438033 4N3/3 Description needs to be specific. For (d), students apply D=SxT even when the speed is not constant. joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272440031 2018-08-09 03:09:19 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272440031 4N3/6 Total Distance = Total Speed times total time... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272440465 2018-08-09 03:14:03 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272440465 4N3/19 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272441206 2018-08-09 03:23:30 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272441206 4N3/12 Student used completing the square wrongly joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272602142 2018-08-10 08:45:40 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272602142 4N2/1 Coefficient of x square need not be 1 for Quad formula joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272602891 2018-08-10 09:00:39 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272602891 4N2/2 Again, used completing the square when coeff of x square is not reduced to 1. joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272604728 2018-08-10 09:32:46 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272604728 4N2/6 Again, wrong use of completing the square joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272605083 2018-08-10 09:39:40 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272605083 4N2/18 Could not recognise the quadratic form joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272605946 2018-08-10 09:51:30 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272605946 4N1/20 Axes are inverted... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272608773 2018-08-10 10:51:57 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272608773 4N2/13 Needs help in graphing... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272611778 2018-08-10 11:41:35 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272611778 4N2/11 A good curve! joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272612039 2018-08-10 11:45:00 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272612039 4N2/8 Legend on the x axis... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272612458 2018-08-10 11:52:22 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272612458 4N3/18 Negative and positive axes... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272629375 2018-08-10 14:32:48 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272629375 4N1/1 Results are more consistent ... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272692683 2018-08-11 02:48:24 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272692683 4N1/09 Student needs revision joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272693330 2018-08-11 03:09:21 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272693330 4N1/22 Candidate need to explain not just describe... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272693999 2018-08-11 03:31:44 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272693999 4N3/7 Needs training... joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272701143 2018-08-11 06:54:39 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272701143 4N2/23 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272702188 2018-08-11 07:34:17 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272702188 4N3/21 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272702240 2018-08-11 07:36:09 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272702240 4N3/13 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272702469 2018-08-11 07:48:21 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272702469 4N2/12 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272702539 2018-08-11 07:51:27 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272702539 4N4/33 Well presented answer joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272706545 2018-08-11 11:05:56 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272706545 4N3/20 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272735031 2018-08-12 01:36:32 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272735031 4N3/11 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272735392 2018-08-12 01:46:51 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272735392 4N3/9 Benson needs a new pen joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272735673 2018-08-12 01:53:43 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272735673 4N1/17 Bearing of A from C should be less than 270 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272749034 2018-08-12 09:44:57 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272749034 4N3/16 Clearly explained joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272751232 2018-08-12 11:19:15 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272751232 4N1/8 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272755732 2018-08-12 14:06:28 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272755732 4N1/8 joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272755829 2018-08-12 14:08:41 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272755829 4N1/9 Tangent drawn at the wrong place joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272756461 2018-08-12 14:26:18 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/272756461 Advice joannachong1_1 https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/328197295 When teaching the different ways to solve a quadratic, start with cross multiplication, then move on to the quadratic formula.
Teach completing the square last.]]> 2019-02-06 11:58:00 UTC https://padlet.com/joannachong1_1/2dm6gua6tfze/wish/328197295