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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Yeah that’s what I’m thinking, teaching that dot point in isolation definitely makes no sense at all…<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></a></p>
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<p style="font-family:Arial" id="c1-id-7"><font face="calibri" id="c1-id-8"><font face="calibri" id="c1-id-9"><font color="#800000" size="2" id="c1-id-10"><font size="3" id="c1-id-11"><strong id="c1-id-12">Ben Hines<br id="c1-id-13">
</strong></font><font size="3" id="c1-id-14">Mathematics and ICT Teacher<br id="c1-id-15">
Senior School - Waurn Ponds<br id="c1-id-16">
(03)5241 1577</font></font></font></font></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> sofdev-bounces@edulists.com.au [mailto:sofdev-bounces@edulists.com.au]
<b>On Behalf Of </b>Victoria Farrell<br>
<b>Sent:</b> Friday, 21 July 2017 4:01 PM<br>
<b>To:</b> Year 12 Software Development Teachers' Mailing List <sofdev@edulists.com.au><br>
<b>Subject:</b> Re: [Year 12 SofDev] U4O1 KK1<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">This is where I cover data structures - Variables, records, ID arrays, Dictionaries and Hash tables.<o:p></o:p></p>
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<p class="MsoNormal">Explaining hash functions demonstrates how data is stored and accessed efficiently.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Then I compare different search approaches for an array ( n ) - Linear Search = O<span style="font-size:7.5pt">n</span>, Binary search = O<span style="font-size:7.5pt">log n</span> and Hash functions = O<span style="font-size:7.5pt">1</span> <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">You can also talk about the ease of data access via a separate files so that it can retained after the system is shut down.<o:p></o:p></p>
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<p class="MsoNormal">Global and Local Variables are stored temporarily for different reasons.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I don't teach the dot point in isolation with the rest of the course though.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hope that helps.<o:p></o:p></p>
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<p class="MsoNormal">Vic<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Fri, Jul 21, 2017 at 3:22 PM, Ben Hines <<a href="mailto:b.hines@ccg.vic.edu.au" target="_blank">b.hines@ccg.vic.edu.au</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi all,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I was just wondering what other SD teachers discuss with their students on U4O1 KK1: ways in which file size, storage medium and organisation of files affect access of data.
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">It seems pretty vague to me and I’m not sure where I’m supposed to focus on for any particular exam questions etc…<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Regards<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Ben Hines<o:p></o:p></p>
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<p id="m_-8586937924775525223c1-id-7"><strong id="m_-8586937924775525223c1-id-12"><span style="font-family:"Calibri",sans-serif;color:maroon">Ben Hines</span></strong><b><span style="font-family:"Calibri",sans-serif;color:maroon"><br id="m_-8586937924775525223c1-id-13">
</span></b><span style="font-family:"Calibri",sans-serif;color:maroon">Mathematics and ICT Teacher<br id="m_-8586937924775525223c1-id-15">
Senior School - Waurn Ponds<br id="m_-8586937924775525223c1-id-16">
(03)5241 1577</span><span style="font-family:"Arial",sans-serif"><o:p></o:p></span></p>
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<p><b><i><span style="font-size:9.0pt;font-family:"Trebuchet MS",sans-serif">Victoria Farrell</span></i></b><i><span style="font-size:9.0pt;font-family:"Trebuchet MS",sans-serif"><br>
Head of Technology Department </span></i><span style="font-size:9.5pt"><o:p></o:p></span></p>
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<i>P 03 9832 4980</i></span><span style="font-size:9.5pt"><o:p></o:p></span></p>
<p><i><span style="font-size:9.0pt;font-family:"Trebuchet MS",sans-serif">E <a href="mailto:farrellv@stkevins.vic.edu.au" target="_blank">
farrellv@stkevins.vic.edu.au</a></span></i><o:p></o:p></p>
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