om .c s er ap eP m e tr .X w w w Scheme of work – Cambridge IGCSE® Computer Studies (US) 0441 Unit 7: Generic software Recommended prior knowledge None, although students will be able to draw on any previous experience of using generic application software. Context Practical experience of generic application software supports many other units and students need to study this unit before or alongside Unit 12, as one or more generic application programs may be needed to implement a solution to a coursework problem and document it. For this unit, together with Unit 8, Computer Studies Support Booklet – Part 4 (http://teachers.cie.org.uk/docs/dynamic/31799.pdf) provides notes on section 4 of the syllabus and practice problems (with answers in Computer Studies Support Booklet – Answers (http://teachers.cie.org.uk/docs/dynamic/31801.pdf). Outline Students need to gain a broad overview of generic application software through practical work. As a minimum, they need a general knowledge of the kinds of features typical of different types of generic application program, although each candidate needs to develop greater expertise in the use of those programs that they intend to use for coursework. Syllabus ref Learning objectives 4.1 Introduction to generic application software, datalogging and programming Generic application software Suggested teaching activities Learning resources If not already considered, it is helpful to distinguish between hardware and software and what is meant by the term ‘package’. LWS coursebook pp. 2–4 It is helpful to consider the kinds of feature that many application programs have in common, especially import and export of data files and the use of a graphical user interface. Students need to start practical exercises with generic application software and one or more programming languages early in the course to allow time for skills to develop. Commonly-used (“productivity”) generic application programs studied should include: word processing, desktop publishing, spreadsheets and databases. Word processing and spreadsheets are good types of application program v1 2Y05 Cambridge IGCSE Computer Studies (US) 0441 LWS coursebook pp. 4–10 http://download.openoffice.org/ Open Office, open source productivity suite, similar to Microsoft Office, available for multiple platforms 1 Syllabus ref Learning objectives Suggested teaching activities Learning resources with which to start, as students may already have familiarity with them and students should use a word processing program to write up Paper 2 coursework. Recorded macros are quite hard to modify It may be helpful to explain to students the basic distinction between: • a desktop publishing program, with which the user can create a sequence of pages into which they can place graphical objects including text boxes, and • a word processing program, with which the user can create a sequence or ‘string’ of text characters and formatting codes, into which they can insert graphics ‘inline’ (by default), as if they were blocks of text. Use of spreadsheet programs to include: • use of formulae • text string entered is automatically interpreted as a type of data (text, number, date, etc.) • sorting • filtering • what-if scenarios • charts or graphs. Use of database programs to include: • data types • field length (for text string data type) • sorting • query search criteria • features of relational databases. Customisation of generic application v1 2Y05 These short programs recorded or written in an API scripting language such as Microsoft Office Word VBA or Excel VBA in order to automate frequently-needed access to hard-to-access commands or series of timeCambridge IGCSE Computer Studies (US) 0441 www.teach-ict.com/videohome.htm Links to video tutorials on Microsoft Office programs for desktop publishing, word processing, spreadsheets and databases www.teachict.com/gcse/software/word/student/shome_wp.htm Theory notes, activities and quizzes on word processing www.teachict.com/gcse/software/dtp/students/shome_dtp.htm Theory notes, activities and quizzes on desktop publishing www.teachict.com/gcse/software/spread/student/shome_spreadsheet .htm Theory notes, activities and quizzes on spreadsheets www.teachict.com/gcse_computing/ocr/databases/concepts/home_d b_concepts.htm Theory notes on databases www.bbc.co.uk/schools/gcsebitesize/ict/databases/2datab asesrev1.shtml First of 5 pages on databases and data capture CD of notes from the former website www.theteacher99.btinternet.co.uk/theteacher has: • introduction to word processing • introduction to spreadsheets • introduction to databases • sorting and searching of databases LWS coursebook pp. 24–5 www.cedar.u-net.com/ict6/demoidx.htm 2 Syllabus ref Learning objectives software by the use of macros Suggested teaching activities Learning resources consuming commands are best studied through practical exercises. Search for macro In some software, such as Microsoft Office Word, Excel and PowerPoint, it is possible to open the VBA editor once the recording process has started and watch the accumulation of recorded code or even delete mistakes. Microsoft Office Access cannot record macros, but can have them written as “macro actions”. The advantages and disadvantages of generic application software compared with bespoke software Communications software Web authoring and browsers programs and search engines Graphics editing programs v1 2Y05 Macros written or modified from recordings by the student may constitute programming for a simpler coursework project. Ask students why generic application software is often called “off-theshelf”. (Ans: Because it is a mass-produced item generally available from stock) Also, ask students what bespoke means. (Ans: Made to suit a particular customer, not just a particular use) Students can explore possible advantages and disadvantages of off-theshelf compared with bespoke software in groups or as a whole class activity. Students need to research the features of a range of software, such as fax, telephony, VoIP, video-conferencing, email and instant messaging. The study of search engines can be linked to their application in Unit 1. It may be helpful to draw students’ attention to the fact that “web design” software commonly refers to programs for building or authoring websites, blurring the distinction required in Units 3 and 12 between design (detailed planning) and implementation (building). Students often find Microsoft Paint or other simple graphics programs fascinating, but it is helpful to give them practical exercises that illustrate the differences between bitmap and vector graphics. Cambridge IGCSE Computer Studies (US) 0441 LWS coursebook pp. 25–6 www.teachict.com/gcse_computing/ocr/213_software/custom_offshel f/home_custom_offshelf_sw.htm Theory notes, activities and quizzes on off-the-shelf compared with bespoke software LWS coursebook pp. 10–3 LWS coursebook pp. 13–6 www.teach-ict.com/videohome.htm Links to video tutorials on Dreamweaver & FrontPage web authoring programs LWS coursebook pp. 16–7 www.gimp.org/downloads/ GIMP, open source graphics program for a variety of operating systems It differs from many other programs in the way that a selected graphical object is moved and each text box is its own layer 3 Syllabus ref Learning objectives Suggested teaching activities Learning resources Microsoft Office Tools contains Picture Manager contains a relatively small number of powerful photo editing features CAD programs Students need to research the features of CAD programs, preferably through practical work. Multimedia authoring and presentation programs Students need to research the features of these programs, preferably through practical work. Data-logging Consider using a simulation if no data logger is available for practical work. Note that Impress is a presentation program available as part of the open source Open Office suite. A data logger typically exports a CSV file, which can be imported by a spreadsheet program for analysis. Students can research the features and hardware components of a data logger: • automatic scheduled data capture • allows 24/7 monitoring • improved accuracy since it eliminates transcription errors • contains: o ROM memory to store the program to control its operation o RAM or flash memory to store the captured data Programming As with generic application software, students need to start practical exercises with one or more programming languages early in the course to allow time for skills to develop. www.teach-ict.com/videohome.htm Links to video tutorials on Adobe Photoshop photo editing program LWS coursebook pp. 17–8 http://sketchup.google.com/ Sketchup, free CAD program LWS coursebook pp. 18–21 www.teach-ict.com/videohome.htm Links to video tutorials on Adobe Flash multimedia authoring program, Microsoft Office PowerPoint presentation program and MissionMaker 3-D game authoring program LWS coursebook pp. 21–3 http://www.bbc.co.uk/schools/gcsebitesize/ict/measurecon trol/3dataloggingrev1.shtml First of 3 pages of introduction to data-logging www.teachict.com/gcse/software/datalogging/students/shome_datalo gging.htm Theory notes, activities and quizzes on data-logging www.valianttechnology.com/archive/freebies/cdsamples/datalogger/lo gger.swf Flash simulation of the operation of a data logger LWS coursebook pp. 23–4 www.mathplayground.com/mathprogramming.html Applet for programming a turtle in Logo Introductory exercises should include programming a turtle in Logo, which v1 2Y05 Cambridge IGCSE Computer Studies (US) 0441 4 Syllabus ref Learning objectives Suggested teaching activities Learning resources although simple, sometimes appears in exam questions. http://education.mit.edu/starlogo/ StarLogo, MIT’s free, agent-based simulation language Has a 2-D version, OpenStarLogo and a 3-D version, StarLogo TNG Explain to students that, although program code can be written with a simple text editor program, it needs software to compile (if required) and debug it, which is usually provided, together with other facilities, by a single program called an integrated development environment (IDE) for their chosen programming language. Amongst free languages that are well documented and have large user communities, Python is prominent. Students need to perform practical exercises to develop programming skills that will prepare them for coursework. These should cover the range required for pseudocode in Unit 5, namely: • processes: o input o output o assignment o totals o counting • structures: o iteration (repetition) o selection Additionally, students need to learn how to handle data types and structures and probably files. http://gcsecomputing.org.uk/theory/1_7/1_7_programming _languages.html End of page describes an IDE http://info.scratch.mit.edu/Scratch_1.4_Download Scratch, a free programming language that lets you create your own interactive stories, animations, games, music, and art www.briggs.net.nz/log/writing/snake-wrangling-for-kids/ Snake Wrangling for Kids, a free, printable electronic book that covers the basics of programming in Python 3 www.pythonsummerschool.net/course.php A free teacher’s course in the Python programming language Prerequisite resources: www.pythonsummerschool.net/get_ready.php www.justbasic.com/download.html A free version of the BASIC programming language Help requires download in Windows Vista and 7 and does not include the tutorial mentioned in the Welcome screen As mentioned above, macros written or modified from recordings by the student may constitute programming for a simpler coursework project. Note that while Microsoft Office VBA is common to many members of the suite of programs, each member of the suite has its own “dialect” of VBA, as the language has to interact with different sets of objects in each member of the suite. v1 2Y05 Cambridge IGCSE Computer Studies (US) 0441 5