This is the big battle in western education, at least in US, UK and Australia to a smaller extent.
In US and UK has largely been won by the standards reform people.
Good example of an rich program in which computers are important but not central. So not every student needs one. They are an important aide. The most important input the the step by step support from the NASA materials that allow students to choose various options, and see if they work!
There are many parts to Diigo and it is easy to get confused. It is also possible to use it in quite different ways. I find the Dashboard very useful. You can organise it how you like. I have this group EDET9320Beijing at the top so I can keep in touch with recent additions to the group.
Great story about how this high quality University has replaced some lectures with problem solving tutorials - with lots of ICT - and is getting very positive results.
Outstanding article that explains how the concept of 'loose coupling' has led to a culture of teacher privacy which hinders learning from each other. Strong advocate for professional support and professional accountability for teachers.
This is a long and difficult article but one of the best I have read for a long time. It gives a very accurate explanation about what needs to be done to western school culture to raise standards.
Outstanding resource: one of the rare matrixes that is useful: in large part because it is about what students can do rather than teachers, and the short videos make it much more useful.