Such a nice way of visualizing how learning happens! The amount of information (or the data) around us is bigger than ever, and the internet provides us with more and more data all the time. One important role for an effective teacher is to help students make good choices while searching data (and information). It may not be obvious for students what a reliable source looks like, so it is essential to teach about source criticism. I would also communicate early and often the fact that the knowledge two students construct from the same piece of information is different.
Your knowledge is different from mine, and that is exactly how it should be, because learning is highly individual (as opposite from teaching that can be done even with mass media). I know this does not exactly fit into the current testing culture, but let’s be realistic: students are learning for life, not for school. (At least that was the basic idea of public education when it was founded: to help students become ready for their lives.)
How could we lead more students to the path of learning?