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<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Hi,<o:p></o:p></span></a></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">I raised the same question at the start of the thread titled “It is safe to comment on the SD exam” which generated some responses. My thoughts:
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><span style="mso-list:Ignore">A)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Study design suggests (from a plain-english reading of it – I asked actual English teachers to read and interpret it) to require teaching
of associative arrays, but optionally in addition, dictionary or hash tables.<br>
I assume the reason for the use of the word ‘or’ is because different programming languages deal with them differently.<br>
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<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><span style="mso-list:Ignore">B)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Hash tables do not = associative arrays<br>
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<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><span style="mso-list:Ignore">C)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Also agree with Brett… hash
<i>functions</i> are different to hash <i>tables</i>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">A 5-mark question on this seems a smidgen unfair.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Clarification of this KK would be appreciated for next year, as would definitions according to VCAA for some of the other items raised in emails
so far.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Lisa Kerekes<br>
</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Secondary Teacher<br>
Phone: (03) 9844 2471 <br>
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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>Brett Fitzsimmons<br>
<b>Sent:</b> Saturday, 12 November 2016 7:40 PM<br>
<b>To:</b> Year 12 Software Development Teachers' Mailing List <sofdev@edulists.com.au><br>
<b>Subject:</b> Re: [Year 12 SofDev] Deja vu<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I think there is a distinct difference between “table” and “function”.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hash functions have applications other than being used for associative arrays or hash tables (as mentioned in study guide).They are used for encryption algorithms such as MD5. Also, the implementation of an associative array is dependent
on the language - it might not even use an array, it could be implemented as a linked list or red-black tree or any data data structure. <o:p></o:p></p>
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<p class="MsoNormal">I think this needs to be clarified for next year.<o:p></o:p></p>
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<p class="MsoNormal">On 12 Nov 2016, at 2:42 PM, Tony Crewe <<a href="mailto:TonyCrewe@caulfieldgs.vic.edu.au">TonyCrewe@caulfieldgs.vic.edu.au</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">IMHO implied by ...<o:p></o:p></span></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri",sans-serif">uses<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>of<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>data<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>structures<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>to<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>organise<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>and<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>manipulate<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>data,<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>including<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>associative<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>arrays<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>(or<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>dictionaries<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>or<span class="apple-converted-space"><span style="letter-spacing:-.8pt"> </span></span>hash
tables)</span><span style="font-family:"Calibri",sans-serif"><o:p></o:p></span></li></ol>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif">Tony</span><span style="font-family:"Calibri",sans-serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span class="apple-converted-space"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span></span><a href="mailto:sofdev-bounces@edulists.com.au"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">sofdev-bounces@edulists.com.au</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">
<</span><a href="mailto:sofdev-bounces@edulists.com.au"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">sofdev-bounces@edulists.com.au</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">> on behalf of Brett Fitzsimmons
<</span><a href="mailto:bpfitz@netspace.net.au"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">bpfitz@netspace.net.au</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">><br>
<b>Sent:</b><span class="apple-converted-space"> </span>Saturday, 12 November 2016 2:20 PM<br>
<b>To:</b><span class="apple-converted-space"> </span>Year 12 Software Development Teachers' Mailing List<br>
<b>Subject:</b><span class="apple-converted-space"> </span>Re: [Year 12 SofDev] Deja vu</span><span style="font-family:"Calibri",sans-serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">There is also no reference to hash functions in the Study Guide.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Brett <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">On 12 Nov 2016, at 10:52 AM, Mark <</span><a href="mailto:mark@vceit.com"><span style="font-family:"Calibri",sans-serif">mark@vceit.com</span></a><span style="font-family:"Calibri",sans-serif">>
wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">The sample SD exam contained references in C10 to random and sequential files, and Paula has acknowledged that this was not a valid question since the terms are not in the study design.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Question B1 in the official SD exam refers to "a linear file", which also does not appear in the study design. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">At least the question's marks did not depend on students knowing the definition of the term.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">--<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;font-family:"Calibri",sans-serif">Mark Kelly</span><span style="font-family:"Calibri",sans-serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><a href="mailto:mark@vceit.com" target="_blank"><span style="font-size:9.5pt;font-family:"Calibri",sans-serif">mark@vceit.com</span></a><span style="font-family:"Calibri",sans-serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><a href="http://vceit.com/" target="_blank"><span style="font-family:"Calibri",sans-serif">http://vceit.com</span></a><span style="font-family:"Calibri",sans-serif"><o:p></o:p></span></p>
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</span><a href="http://www.vcaa.vic.edu.au"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">http://www.vcaa.vic.edu.au</span></a><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> - Victorian Curriculum and Assessment Authority
and<br>
</span><a href="http://www.vcaa.vic.edu.au/vce/studies/infotech/softwaredevel3-4.html"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">http://www.vcaa.vic.edu.au/vce/studies/infotech/softwaredevel3-4.html</span></a><span class="apple-converted-space"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> </span></span><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><br>
</span><a href="http://www.vitta.org.au"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">http://www.vitta.org.au</span></a><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> - VITTA Victorian Information Technology Teachers
Association Inc<br>
</span><a href="http://www.swinburne.edu.au/ict/schools"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif">http://www.swinburne.edu.au/ict/schools</span></a><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> - Swinburne University</span><o:p></o:p></p>
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