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After teacher professional development, the area in which ICT can make a significant difference is in the creation, revision and sharing of digital curricular content. The marginal costs of sharing digital content is negligible. A large number of digital tools are available to create digital resources, in text, image, animation, audio and video formats. Moving beyond the ‘text book’ to include additional formats of resources can create a rich learning environment, in which teachers have a wealth of materials to chose from, based on their needs and priorities. Teachers also need a common space where they can access resources for their classroom teaching, and also for TPD. Test edit.

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The size of the public education system in most states could help to create a sufficient volume of interaction in the professional learning communities. The networking of teachers using digital technologies can make the large size of the system as a strength, as the large number of teachers participating in the network could be a benefit in terms of the volume of resources created and shared by them. Even if only a very small percentage of teachers from the public education system participate, in absolute numbers, it is likely to be large enough to provide a base for OER creation. It is necessary to license all these digital resources as ‘open educational resources’ (OER), since that would enable the resources to be freely re-used, revised and re-distributed. This also needs to be formalized through state curricular policy, by which all materials developed using public funding would be released as OER1.

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<timeline> ImageSize = width:160 height:550 PlotArea = width:50 height:530 left:50 bottom:10 DateFormat = yyyy Period = from:1919 till:1991 TimeAxis = orientation:vertical ScaleMajor = unit:year increment:5 start:1920 there is no automatic collision detection, so shift texts up or down manually to avoid overlap Define $dx = 25 # shift text to right side of bar PlotData= bar:Leaders color:red width:25 mark:(line,white) align:left fontsize:S from:start till:1922 shift:($dx,15) text:Vladimir~Ilyich~Lenin from:1922 till:1953 shift:($dx,5) text:Josef Stalin from:1953 till:1964 shift:($dx,5) text:Nikita~Khrushchev from:1964 till:1982 shift:($dx,5) text:Leonid~Brezhnev from:1982 till:1984 shift:($dx,-12) text:Yuri~Andropov from:1984 till:1985 shift:($dx,4) text:Konstantin~Chernenko fontsize:XS from:1985 till:end shift:($dx,10) text:Mikhail~Gorbachev </timeline>

<timeline> ImageSize = width:800 height:100 PlotArea = width:720 height:75 left:65 bottom:20 AlignBars = justify Colors = id:epoch value:rgb(0.7,0.7,1) # light yellow id:period value:rgb(1,0.7,0.7) # light red id:age value:rgb(0.7,1,0.7) # light green id:era value:rgb(1,1,0.7) # light blue id:eon value:rgb(1,0.7,1) # light purple id:black value:black Period = from:-4500 till:0 TimeAxis = orientation:horizontal ScaleMajor = unit:year increment:500 start:-4500 ScaleMinor = unit:year increment:100 start:-4500 Define $markred = text:"*" textcolor:red shift:(0,3) fontsize:10 PlotData= align:center textcolor:black fontsize:8 mark:(line,black) width:25 shift:(0,-5) bar:eon color:eon at: 0 align:right $markred at: -545 align:left $markred from: -545 till: 0 text:Phanerozoic from:-4500 till: 0 text:Precambrian bar:era color:era from: -64.3 till: 0 text:C~z shift:(0,1.5) from: -251.1 till: -64.3 text:Meso~zoic shift:(0,1.5) from: -545 till: -251.1 text:Paleo~zoic shift:(0,1.5) from:-4500 till: -545 text:Proterozoic bar:period color:period fontsize:6 from: -1.6 till: 0 from: -64.3 till: -1.6 from: -146 till: -64.3 from: -208 till: -146 from: -251.1 till: -208 from: -286 till: -251.1 from: -360 till: -286 from: -408.5 till: -360 from: -443.5 till: -408.5 from: -490 till: -443.5 from: -545 till: -490 fontsize:8 from: -900 till: -545 text:Neoprote-~rozoic shift:(0,1.8) from:-1600 till: -900 text:Mesoproterozoic from:-2500 till: -1600 text:Paleoproterozoic from:-3800 till: -2500 text:Archaean from: start till: -3800 text:Hadean </timeline> <timeline> ImageSize = width:800 height:120 PlotArea = width:720 height:95 left:65 bottom:20 AlignBars = justify Colors = id:epoch value:rgb(0.7,0.7,1) # light yellow id:period value:rgb(1,0.7,0.7) # light red id:age value:rgb(0.7,1,0.7) # light green id:era value:rgb(1,1,0.7) # light blue id:eon value:rgb(1,0.7,1) # light purple id:filler value:gray(0.8) # background bar id:black value:black Period = from:-545 till:0 TimeAxis = orientation:horizontal ScaleMajor = unit:year increment:100 start:-500 ScaleMinor = unit:year increment:10 start:-540 Define $markred = text:"*" textcolor:red shift:(0,3) fontsize:10 Define $markgreen = text:"*" textcolor:green shift:(0,3) fontsize:10 PlotData= align:center textcolor:black fontsize:8 mark:(line,black) width:25 shift:(0,-5) bar:eon color:eon at: 0 align:right $markred at: -545 align:left $markred from: -545 till: 0 text:Phanerozoic bar:era color:era at: 0 align:right $markgreen at: -64.3 align:left $markgreen from: -64.3 till: 0 text:Cenozoic from: -251.1 till: -64.3 text:Mesozoic from: -545 till: -251.1 text:Paleozoic bar:period color:period fontsize:8 from: -1.6 till: 0 from: -64.3 till: -1.6 text:Tertiary from: -146 till: -64.3 text:Cretaceous from: -208 till: -146 text:Jurassic from: -251.1 till: -208 text:Triassic from: -286 till: -251.1 text:Permian from: -360 till: -286 text:Carboniferous from: -408.5 till: -360 text:Devonian from: -443.5 till: -408.5 text:Silurian from: -490 till: -443.5 text:Ordovician from: -545 till: -490 text:Cambrian bar:age color:age fontsize:6 from: start till: end from: -23 till: -1.6 text:Neo-~gene shift:(0,0.5) from: -64.3 till: -23 text:Paleo~gene shift:(0,0.5) from: -286 till: -251.1 # mark end of Paleozoic from: -325 till: -286 text:Pennsyl-~vanian shift:(0,0.5) from: -360 till: -325 text:Missis-~sippian shift:(0,0.5) </timeline> <timeline> ImageSize = width:800 height:120 PlotArea = width:720 height:95 left:65 bottom:20 AlignBars = justify Colors = id:epoch value:rgb(0.7,0.7,1) # light yellow id:period value:rgb(1,0.7,0.7) # light red id:age value:rgb(0.7,1,0.7) # light green id:era value:rgb(1,1,0.7) # light blue id:black value:black Period = from:-65.5 till:0 TimeAxis = orientation:horizontal ScaleMajor = unit:year increment:10 start:-60 ScaleMinor = unit:year increment:1 start:-65 Define $markgreen = text:"*" textcolor:green shift:(0,3) fontsize:10 PlotData= align:center textcolor:black fontsize:8 mark:(line,black) width:25 shift:(0,-5) bar:era color:era at: 0 align:right $markgreen at: start align:left $markgreen from:start till: 0 text:Cenozoic bar:period color:period from: -1.6 till: 0 text:Qua~ter~nary fontsize:6 align:left shift:(-7,5) from:start till: -1.6 text:Tertiary bar:age color:age from: -1.6 till: 0 from: -23 till: -1.6 text:Neogene from:start till: -23 text:Paleogene bar:epoch color:epoch from: -0.1 till: 0 from: -1.6 till: -0.1 text:P from: -5 till: -1.6 text:Plio~cene shift:(0,1) fontsize:6 from:-23 till: -5 text:Miocene from:-38 till:-23 text:Oligocene from:-55 till:-38 text:Eocene from:start till:-55 text:Paleocene </timeline>