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| Filename: | [PDF] 2014 CAIE P1 Mark Schemes 1112 Mathematics Specimen Cambridge Lower Secondary Checkpoint.pdf |
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| Description: | Download file or read online CAIE Cambridge primary checkpoint specimen paper Mathematics 1112/01/SM/14 for examination from 2014 mark schemes paper 1 - Cambridge Assessment International Education. |
[PDF] 2014 CAIE P1 Mark Schemes 1112 Mathematics Specimen Cambridge Lower Secondary Checkpoint.pdf | Plain Text
This document consists of 11 printed pages and 1 blank page. IB14 1112_01_SM/4RP © UCLES 2014 [Turn over Cambridge International Examinations Cambridge Checkpoint MATHEMATICS 1112/01 Paper 1 For Examination from 2014 SPECIMEN MARK SCHEME MAXIMUM MARK: 50
2 © UCLES 2014 1112/01/SM/14 Question 1 Part Mark Answer Further Information 1 3 56 72 93 146 198 Total 1 Question 2 Part Mark Answer Further Information 2 25 Award 1 mark for 20, 15, 35 or 127 or 12 5 Total 2 Question 3 Part Mark Answer Further Information (a) 2 8 and 29 Award 1 mark for each. (b) 1 t = 7 p – 6 Total 3 Question 4 Part Mark Answer Further Information (a) 1 Any two sections with odd numbers and four sections with even numbers. (b) 1 32 Or equivalent Total 2
3 © UCLES 2014 1112/01/SM/14 [Turn over Question 5 Part Mark Answer Further Information 1 14 Total 1 Question 6 Part Mark Answer Further Information (a) 1 111(°) (b) 1 Angles in a triangle = 180 ° or Angles on a straight line = 180 ° or The external angle of a triangle is equal to the sum of the opposite interior angles . or The sum of an interior angle and its exterior angle = 180 ° Total 2 Question 7 Part Mark Answer Further Information (a) 1 −7 ( °C) (b) 1 −10 ( °C) Total 2
4 © UCLES 2014 1112/01/SM/14 Question 8 Part Mark Answer Further Information 1 0.7 Or equivalent Do not accept ratios. Total 1 Question 9 Part Mark Answer Further Information 2 Two calculations to enable comparison e.g. 72% of 50 = 36 and 21 of 50 = 25 or 38 marks is 76% (or equivalent) and 2 1 = 50% and David scored the highest. Do not award any marks for David with no correct working. Award 1 mark for two correct calculations to enable comparison seen, but incorrect or no decision. Total 2 Question 10 Part Mark Answer Further Information 1 0.7 × 1000 70 × 0.1 700 ÷ 0.01 7 700 70 000 70 7000 All correct for 1 mark. Total 1
5 © UCLES 2014 1112/01/SM/14 [Turn over Question 11 Part Mark Answer Further Information 1 Both correct for the mark. input output 1 5 6 15 9 21 15 33 Total 1 Question 12 Part Mark Answer Further Information (a) 1 38 (b) 1 45.6 (c) 1 4.56 Total 3
6 © UCLES 2014 1112/01/SM/14 Question 13 Part Mark Answer Further Information 1 Award the mark for two 2 x 3 faces correctly positioned, one on each side of the net, e.g. Total 1 Question 14 Part Mark Answer Further Information (a) 1 200 150 100 10 00 11 00 12 00 time 09 00 13 00 14 00 50 0 Accuracy in drawing 2 1 ± square (b) 1 80 minutes or equivalent Accept answers in hours and minutes e.g. 1 hour 20 (minutes) Follow through from (a) if their line reaches the top of the graph ( 2 1 ± square) Total 2
7 © UCLES 2014 1112/01/SM/14 [Turn over Question 15 Part Mark Answer Further Information 1 0.2 2, 364 , 25 , 3 2 Accept 0.04, 4, 5, 9 Total 1 Question 16 Part Mark Answer Further Information (a) 2 5.616 Award 1 mark for attempting to multiply 156 by 36 (condone numerical errors but do not accept place value errors). (b) 2 3.4 Award 1 mark for correct method (e.g. changing to 54.4 ÷ 16) Total 4 Question 17 Part Mark Answer Further Information 2 (n = ) 31 Award 1 mark for sight of n – 3 or for an equation that simplifies to 2 n – 3 = 59. or Award 1 mark for an answer of 28. Total 2
8 © UCLES 2014 1112/01/SM/14 Question 18 Part Mark Answer Further Information 2 sea 62° 74° A B land Accept ±2° accuracy of bearings for 2 marks. Accept any clear indication of boat's position including intersecting lines. Award 1 mark for sight of a correct method (accept a line drawn from either A or B with bearing accurate to ±2°). Total 2 Question 19 Part Mark Answer Further Information 1 True False All correct for 1 mark. 90 = 0 93 × 9 2 = 9 5 98 ÷ 9 4 = 9 2 Total 1
9 © UCLES 2014 1112/01/SM/14 [Turn over Question 20 Part Mark Answer Further Information (a) 2 1211 or equivalent fraction Award 1 method mark for attempting to subtract two relevant fractions by converting to a common denominator (12 or a multiple of 12). (b) 2 51 3 or 5 16 or equivalent fraction Award 1 method mark for attempting to change to improper fractions and attempting to multiply numerators and denominators together. Total 4 Question 21 Part Mark Answer Further Information 2 P Q 1 mark for sight of an arc of a circle centred on P and Q with a radius accurate to ± 2mm Accept any clear indication of the correct region. Total 2 Question 22 Part Mark Answer Further Information (a) 1 19 (b) 1 40 Total 2
10 © UCLES 2014 1112/01/SM/14 Question 23 Part Mark Answer Further Information 1 -2 ≤ n ≤ 5 -2 < n ≤ 5 -2 ≤ n < 5 5 ≥ n < -2 Total 1 Question 24 Part Mark Answer Further Information (a) 1 32 (cm) (b) 1 165 (cm) (c) 2 Two distinct and valid comparative statements e.g. Class 8B is taller The range of class B is larger The median of 8B is higher than 8A The tallest person is in Class B. Award 1 mark for 1 correct statement. Total 4
11 © UCLES 2014 1112/01/SM/14 Question 25 Part Mark Answer Further Information 3 ($)0.35 or equivalent Award 1 mark for finding profit of $2 or total $7. Award 1 mark for their profit (including follow through from an incorrect profit) ÷ 20 or Award 1 mark for finding 1 can costs $0.25 Award 1 mark for their can cost (including follow through from an incorrect cost) x 1.4 Total 3
12 © UCLES 2014 1112/01/SM/14 BLANK PAGE