Alice Chen writes: "Why do students plagiarize? Most of the time it's probably due to two reasons: they don't know how to properly cite their sources or they don't know what to write.
In my English Language Arts class, my students are constantly writing. It may be blog posts, essays, or speeches. We don't use services like Turnitin so how do I know that they are truly the authors of the work they call their own?
First, my students start and complete most of their writing in class. When given time to write, there is less inclination to cheat."
Via Mary Reilley Clark
Alice gives lots of good advice for teachers here, and takes full advantage of Google tools to assist students in their writing. I'm going to suggest the use of mind maps to get students to brainstorm about their writing. I've watched too many students open a Google Doc, Google their topic in another window, and toggle back and forth between skimming a source and writing. It's the easiest way to plagiarize, intentionally or not.
Creating a mind map, sharing their Google doc with their teacher, and getting feedback from other students are all ways to interrupt the "Google, copy and paste" system that runs rampant through research projects I've seen.