Cambridge IGCSE Design and Technology 0445 — 2017 Oct/Nov Paper 1 · Variant 2

* 4 4 4 4 8 0 2 1 8 6 * This document consists of 4 printed A4 pages and 2 A3 Inserts. DC (CW/FC) 136174/1 © UCLES 2017 [Turn over Cambridge International Examinations Cambridge International General Certificate of Secondary Education DESIGN AND TECHNOLOGY 0445/12 Paper 1 Product Design October/November 2017 1 hour 15 minutes Candidates answer on the pre-printed A3 Answer Sheets. Additional Materials: Standard drawing equipment and coloured pencils. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name in the spaces on both printed Answer Sheets. Write in dark blue or black pen. You may use an HB pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, glue or correction fluid. DO NOT WRITE IN ANY BARCODES. Answer one question. Write/draw your answers in the spaces provided on the Answer Sheets. You may use a calculator. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question. The total of the marks for this paper is 50.

2 0445/12/O/N/17 © UCLES 2017 Answer one question only on the A3 pre-printed Answer Sheets provided. 1 Plant pots can be filled with compost soil. Design a unit that can be used at a convenient height when a person is filling plant pots with compost soil. The unit should fold flat for storage. (a) List four additional points about the function of such a unit that you consider to be important. [4] (b) Show two different methods which could be used to provide a folding feature on such a unit. [4] (c) Develop and sketch three ideas for the unit. [12] (d) Evaluate your ideas and justify why you have chosen one idea to develop more fully. [8] (e) Draw, using a method of your own choice, a full solution to the problem. Include construction details and important dimensions. [12] (f) Suggest two suitable specific materials for your solution and give reasons for your choice. [4] (g) Outline a method used to manufacture one part of your solution. [6]

3 0445/12/O/N/17 © UCLES 2017 [Turn over 2 A company wishes to promote a range of greenhouses. Potential customers will receive the model in an envelope in flat-pack form. Design a three dimensional (3D) flat-pack model of a greenhouse. (a) List four additional points about the function of such a 3D model that you consider to be important. [4] (b) Use sketches and notes to show two different methods of making a flat-pack 3D model pop up when released from an envelope. [4] (c) Develop and sketch three ideas for the 3D model. [12] (d) Evaluate your ideas and justify why you have chosen one idea to develop more fully. [8] (e) Draw, using a method of your own choice, a full solution to the problem. Include construction details and important dimensions. [12] (f) Suggest two suitable specific materials for your solution and give reasons for your choice. [4] (g) Outline a method used to manufacture one part of your solution. [6]

4 0445/12/O/N/17 © UCLES 2017 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. 3 Greenhouse doors are left open during hot days. Design a device which will automatically close a greenhouse door when the temperature falls. (a) List four additional points about the function of such a device that you consider to be important. [4] (b) Use sketches and notes to show two mechanisms which could be used to convert rotary to linear motion. [4] (c) Develop and sketch three ideas for the device. [12] (d) Evaluate your ideas and justify why you have chosen one idea to develop more fully. [8] (e) Draw, using a method of your own choice, a full solution to the problem. Include construction details and important dimensions. [12] (f) Suggest two suitable specific materials for your solution and give reasons for your choice. [4] (g) Outline a method used to manufacture one part of your solution. [6]

® IGCSE is a registered trademark. This document consists of 3 printed pages. © UCLES 2017 [Turn over Cambridge Assessment International Education Cambridge International General Certificate of Secondary Education DESIGN AND TECHNOLOGY 0445/12 Paper 1 Product Design October/November 2017 MARK SCHEME Maximum Mark: 50 Published 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 International will not enter into discussions about these mark schemes. Cambridge International is publishing the mark schemes for the October/November 2017 series for most Cambridge IGCSE®, Cambridge International A and AS Level components and some Cambridge O Level components.

0445/12 Cambridge IGCSE – Mark Scheme PUBLISHED October/November 2017 © UCLES 2017 Page 2 of 3 Question Answer Marks 1(a) Accept any four additional suitable points – contains loose compost on surface, space for compost and pots, hopper for compost, water resistant, tool rack, easy to keep clean, lightweight for moving/storage. AOVR 1 × 4 4 1(b) Accept drawings of any two folding features – hinged frames, sliding tubes, tubes located in fittings, support struts, detachable legs/top, nuts/bolts, different types of hinge. AOVR 2 × 2 4 Question Answer Marks 2(a) Accept any four additional suitable points – methods of construction, suggested sizes, suitable colour, visual impact, advertising aspects, use of net, printing methods, folding issues. AOVR 1 × 4 4 2(b) Accept drawings of any two pop up methods – elastic bands, lever systems, balloon, pinned articulation, springs. AOVR 2 × 2 4 Question Answer Marks 3(a) Accept any four additional suitable points – light/dark sensing methods, safety issues, different working environments, different power sources, reliability when unattended. AOVR 1 × 4 4 3(b) Accept drawings of any two rotary to linear mechanisms – cam and follower, rack and pinion, crank and slider, screw thread and follower, pulley/cord and falling weight. AOVR 2 × 2 4 Question Answer Marks 1, 2 and 3 (c) Any suitable ideas. At least three different ideas for maximum marks. Pro rata if fewer. 12 Communication Simple drawings displaying a low standard or limited range of techniques. 0–2 Clear drawings displaying a good standard and a range of techniques – shading, colour, annotation. 3–4 High quality drawings using a wide range of techniques with clear annotation and detail. 5–6 [max 6 marks] Suitability Simplistic designs showing outlines only. 0–2 Rather more detail, sensible solutions that could work. 3–4 Accurate solutions, good fitness for purpose, construction detail. 5–6 [max 6 marks]

0445/12 Cambridge IGCSE – Mark Scheme PUBLISHED October/November 2017 © UCLES 2017 Page 3 of 3 Question Answer Marks 1, 2 and 3 (d) Evaluation of each of the ideas. At least 3 evaluations up to 2 marks each. [max 6 marks] 8 Selection and justification. 1+1 [max 2 marks] 1, 2 and 3 (e) Quality of drawing Poor line quality, proportions, little detail 1 Good line work, use of colour, proportions, some detail. 2–3 High standard throughout with a range of techniques that show clearly all detail. 4 [max 4 marks] 12 Dimensions 2 or 3 overall dimensions only 1 Additional detail dimensions 1 [max 2 marks] Construction detail A simplistic approach showing little or no detail of construction to be used. 0–2 Most construction detail may be obvious from overall views or from some annotation. 3–4 All construction detail will be clear with good annotation and additional detail drawings as necessary. 5–6 [max 6 marks] 1, 2 and 3 (f) Suitable specific materials stated. 1+1 4 Appropriate reasons for choice. 1+1 1, 2 and 3 (g) Suitable method described. 1 6 Good detailed description of: processes 0–3 tools 0–2