Cambridge IGCSE Design and Technology 0445 — 2015 Oct/Nov Paper 2 · Variant 1

READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name in the spaces at the top of this page and on the two Answer Sheets. Do not use staples, paper clips, glue or correction fl uid. DO NOT WRITE IN ANY BARCODES. Section A Answer all questions in this section (A1, A2 and A3). Section B Answer one question in this section (B4 or B5). You may use a calculator. Draw your answers in the spaces provided on the answer sheets. All construction and projection lines must be clearly shown. All dimensions are in millimetres. At the end of the examination, insert both sheets into this booklet. Do not punch holes in the cover and sheets or tie with string. The total of the marks for this paper is 50. The number of marks is given in brackets [ ] at the end of each question or part question. DESIGN AND TECHNOLOGY 0445/21 Paper 2 Graphic Products October/November 2015 1 hour Candidates answer on the two inserted A3 Answer Sheets. Additional Materials: Standard drawing equipment Cambridge International Examinations Cambridge International General Certifi cate of Secondary Education This document consists of an A3 cover booklet and 2 inserted A3 sheets. [Turn over DC (ST/FD) 101709/4 © UCLES 2015 * 9 6 1 2 8 5 9 4 9 2 *

Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge International Examinations Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cie.org.uk after the live examination series. Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.

® IGCSE is the registered trademark of Cambridge International Examinations. CAMBRIDGE INTERNATIONAL EXAMINATIONS Cambridge International General Certificate of Secondary Education MARK SCHEME for the October/November 2015 series 0445 DESIGN AND TECHNOLOGY 0445/21 Paper 2 (Graphic Products), maximum raw mark 50 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began, which would have considered the acceptability of alternative answers. Mark schemes should be read in conjunction with the question paper and the Principal Examiner Report for Teachers. Cambridge will not enter into discussions about these mark schemes. Cambridge is publishing the mark schemes for the October/November 2015 series for most Cambridge IGCSE®, Cambridge International A and AS Level components and some Cambridge O Level components.

Page 2 Mark Scheme Syllabus Paper Cambridge IGCSE – October/November 2015 0445 21 © Cambridge International Examinations 2015 A1 (a) Some thick lines added to outside of part A (1) Thick lines added to upright and header of rectangular hole (1) * thin if both surfaces that make up a corner can be seen, thick if only one surface can be seen [2] A1 (b) Top corner removed from part B (either side) (1) Thickness of material shown correctly (1) Slope added to part C (1) Slope added in good proportion and in isometric (1) [4] A2 Front view Part A added in correct position (rectangle regardless of size) (1) Part A correct to overlay (1) Part B correct to overlay (1) Horizontal line added 30 from top of part C (1) [4] Plan Part A correct to overlay (1) Hidden detail shown correct (1) Part B correct to overlay including horizontal line (1) Part C Horizontal line 20 from top (1) [4] A3 (a) One mark for each line added that matches the overlay Left upright (1) Line between wall and roof (1) Roofline to length (1) Left hand angle of roof (1) [4] (b) Suitable methods of adding colour by hand include: • crayons • felt tipped pens • brush paint • spray paint One mark for each correct answer (1 × 2) [2] (c) Sketch shows a partly cut line (typically a series of lozenges) (1) Notes (or label) clearly indicate part of the line is cut (1) [2] e.g. series of holes all the way though the card with a small gap between each hole Do not award marks for scoring.

Page 3 Mark Scheme Syllabus Paper Cambridge IGCSE – October/November 2015 0445 21 © Cambridge International Examinations 2015 (d) Reasons might include: • too much space around the design • no recycling instructions/symbol • uses ‘virgin’ card • does not tessellate… [1] (Do not accept ‘uneconomical’) Problems might be overcome by: • print the design on a smaller piece of card (1) or redesign the net (1) so that more than one can fit on a sheet of card with minimum space between each design (1) • put a recycling symbol on the design (1) so that people will know to put it in the recycling bin (1) [max 2] [Total 25] B4 (a) Any circle drawn on the given centre lines (1) Circle of correct size (50 mm) (1) Drawing in planometric (45° × 45° or 60° × 30°) (1) Top strip 25 mm (1) × 80 mm (1) Front 25 mm or to width of top (1) × 30 mm high (1) Bottom strip to overlay or matches candidate top (1) Back strip to overlay or matches candidate front (1) Shape correctly lined in (1) [10] (b) Two more sides added similar to those given (1) + (1) End glue tab (1) Second top flap added (1) in the correct position (1) Bottom drawn to size (SQ) (1) (or with two half surfaces to size) Bottom in position (1) with glue tabs or closing method (1) All fold lines correctly shown (1) [9] (c) (i) Lithography or digital printing Not Laser, photocopying or screen [1] (ii) Acceptable answers include: • ABS • HIPS • PET • Polystyrene • Polypropylene • PVC… Accept other thermoplastics but not acrylic [1]

Page 4 Mark Scheme Syllabus Paper Cambridge IGCSE – October/November 2015 0445 21 © Cambridge International Examinations 2015 (iii) Sketches and notes show: Concept of a former (1) Flat sheet being heated (1) Suction forces the softened sheet to take on the shape of the former (1) Very well explained (notes and sketches) (1) [4] [Total 25] B5 (a) Outer surface shaded with some different tones (1) or outer surface shaded with graduated tones to appear round/shiny (2) Inner surface shaded with some different tones (1) or inner surface shaded with graduated tones to appear round/shiny (2) Rendering enhances tube producing a high quality outcome (1) [max 5] *award the last mark for really high quality work (b) Break line added to top of name board (1) Horizontal line added to top of tube (1) Inner part of tube added to the right (1) Hatching (45/60 degrees) added to the name board (1) Hatching (45/60 degrees) added to only the walls of the tube (1) Hatching of adjacent parts in opposite directions (1) Spacing between hatching consistent (1) [7] (c) Major axis 100 mm (1) Minor axis 70 mm (1) Some construction (1) or clear construction (2) Six or less points plotted (1) or seven or more points plotted (2) (Trammel method (2) if trammel evident or attached) (4 arcs method (1) mark only) Ellipse profile correct to overlay (1) [max 7] (d) (i) Circle drawn of any size (1) Two sectors the correct size (160, 80 and 120 degrees) (1 × 2) Colour added to enhance the pie chart (1) Labels correctly identify the sectors (1) [5] (ii) Acceptable answers include: • can reach a wider group of customers • data can be entered directly into a database • data can be manipulated and printed in different forms • data can be stored and transferred electronically • saves time/money over manually sorting data [1] [Total 25]