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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Heath,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Looks like a great plan to me. I have already covered this with my class, but I will be going back in Unit 4 and touching on this again as I feel this is one
area that students have had limited if any exposure to prior to coming into this course… and it will simply go in one ear and out the other at this time of year. I also plan to review how I did it this year as I covered all the networking stuff first (it was
easy to do while I got my head around everything else).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks for the teaching and learning strategies and resources.. I think I may need to spend a day sorting out my ‘favourites’ .. way too many links to all sorts
of things now... but all very helpful.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Claudia<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial Black","sans-serif";color:maroon">*********************************************************************</span><span style="font-family:"Times New Roman","serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial Black","sans-serif";color:maroon">Claudia Graham</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial Black","sans-serif";color:maroon">VCE Coordinator<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial Black","sans-serif";color:maroon">Overnewton College</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial Black","sans-serif";color:maroon">9334 0049 (direct)</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> sofdev-bounces@edulists.com.au [mailto:sofdev-bounces@edulists.com.au]
<b>On Behalf Of </b>Matheson, Heath A<br>
<b>Sent:</b> Sunday, 13 March 2011 1:09 PM<br>
<b>To:</b> Year 12 Software Development Teachers' Mailing List<br>
<b>Subject:</b> Re: [Year 12 SofDev] Software development key knowledge<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Dear Colleagues,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">After last week’s discussions and clarification, I just wanted to share my plan and seek some feedback for what needs to be covered for the networking components of the unit:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">I think I’ll approach it like this:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Describe models and why we have them (production line analogy, expertise in an area/layer, easier to innovate and improve a layer when you don’t have to worry about the other layers).<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Mention two different networking models are OSI and TCP/IP. They are essentially building the same thing, a network, but the people on the production line don’t have exactly the same jobs.
<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">The models represent everything that has to happen for two computers to communicate with each other, whether you are sending e-mail, downloading a torrent, printing to the
library, updating facebook, shutting down your mates computer across the room with a batch file.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Go through the OSI layers, <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:36.0pt"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Give an example, I like:
<a href="http://www.tcpipguide.com/free/t_UnderstandingTheOSIReferenceModelAnAnalogy.htm">
http://www.tcpipguide.com/free/t_UnderstandingTheOSIReferenceModelAnAnalogy.htm</a><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:36.0pt"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Like Mark’s PowerPoint, to me it seems easier teaching layer 7 to layer 1 rather than layer 1 upwards, but if anyone has a good
reason to go the other way around I’m certainly listening.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Go through example again with TCP/IP model explaining how it fits with OSI. if I understand correctly TCP/IP has four layers that kind of match up to layers 2-7 of the OSI model. The relationship to the physical layer is that layers
2-7 of the OSI and 1-4 of TCP/IP relate to the physical layer in the same way. Sound correct??? This leads me to the question of why doesn’t TCP/IP have an additional physical layer at the bottom??<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">5.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Finally focus on the physical layer including:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:36.0pt"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Network topologies, network hardware, cabling, wireless communication etc. similar to the previous study design?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:36.0pt"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Question: Is it possible to classify switches hubs and NICs into the physical layer because they are hardware and the cables
plug into them, while the data travelling through these devices is on an upper level? Or is a NIC always on the data layer and switches somewhere between data and network layers?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Sound OK?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Secondly, Kevork, you truly are a master at mediation, interpretation and reconciliation, a big thanks must also go out to you for all your efforts.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Cheers all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Heath Matheson<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Mt Beauty
<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> sofdev-bounces@edulists.com.au [mailto:sofdev-bounces@edulists.com.au]
<b>On Behalf Of </b>Christophersen, Paula P<br>
<b>Sent:</b> Friday, 11 March 2011 5:51 PM<br>
<b>To:</b> Year 12 Software Development Teachers' Mailing List<br>
<b>Subject:</b> [Year 12 SofDev] Software development key knowledge<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">Dear colleagues<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">I write for two reasons – to discuss the key knowledge point in U3O1 ‘purposes and functions of the physical layer (Layer 1) of the OSI and the relationship of the physical layer to the TCP/IP
model’ and to apologise to Andrew Shortell and this community.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt">Key knowledge – why layer 1 and its relationship to the TCP/IP model</span></b><span lang="EN-US" style="font-size:10.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">I certainly appreciate that everyone wants to do the best for their students, hence the need for further discussion about this KK. I hope that the following information helps.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span lang="EN-US" style="font-size:9.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt">The physical layer KK needs to be read in the context of the KK ‘a brief overview of the concept of the OSI model for network protocols’. It is important that students have an overview
of the entire OSI model and how this connects to the TCP/IP model. <o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span lang="EN-US" style="font-size:9.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt">The physical layer was selected for a number of reasons including the need to restrict the scope of the OSI due to its complexity for teaching
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span lang="EN-US" style="font-size:9.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt">As the layers all interact and build upon the functionality of those below them it is appropriate to begin at the foundation level.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">Below is an example of how a teacher has approached these two KKs – this should provide an indication of the depth of treatment.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo6">
<![if !supportLists]><span lang="EN-US" style="font-size:9.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt">Provide a brief overview of all layers, starting at layer 1<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo6">
<![if !supportLists]><span lang="EN-US" style="font-size:9.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt">Discuss the link between layer 1 and the TCP/IP by ‘showing’ how the TCP/IP model is very similar to the OSI model at the physical layer, and then discussing the movement from layer
1 to the upper layers<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l2 level1 lfo6">
<![if !supportLists]><span lang="EN-US" style="font-size:9.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt">Discuss network topologies, NICs and hubs and how these devices aid the transportation of data.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">I hope that this information contributes to a better understanding of the two key knowledge points. It is never the intention of the VCAA to write cryptic study designs – every effort is made
to write robust curriculum documents. Sometimes, however, it’s not until the study design is bedded down that points of clarification arise. If this is the case, then the VCAA will take appropriate courses of action to clarify these concerns. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt">Apology</span></b><span lang="EN-US" style="font-size:10.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">On a personal note, I wish to apologise to Andrew and other members of the community who I have offended with my comments. As so eloquently stated by Kevork problems can arise because of the disjunct
between intention and interpretation. My intention was never to criticise the community for its informed and vigorous discussions about the study design – these discussions are always encouraged. I sincerely hope that my comments do not stifle further conversations.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">Please feel free to contact me if you have any further comments or queries.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">Paula <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">Paula Christophersen</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">ICT Curriculum Manager</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">VCAA</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">41 St Andrews Place</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">EAST MELBOURNE 3002</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt">(03) 9651 4378</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p><b>Important - </b>This email and any attachments may be confidential. If received in error, please contact us and delete all copies. Before opening or using attachments check them for viruses and defects. Regardless of any loss, damage or consequence, whether
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