Freewriting technique

The freewriting technique is going to be one of my first blogs here. I am taking a class 3 times a week where we have to journal and pretty much use this same technique. Well needless to say i haven't written in a journal in years. I pretty much think of it for high school kids who's to say. The instructor told us to write like we were pouring water in a cup. i  Just don't think about it and let my thoughts go on the paper. Well I was so surprised that my thoughts were so different once I started writing them down.  This technique of just letting it flow and getting all the thoughts down so then you can have a look can be pretty powerful stuff.  That way you can sort everything out. figure out what stays what's lame...etc... Once I start then more ideas can easily be reached.  Then I able to start the process of writing a good solid paper that is interesting and has ideas that i  want my  reader to understand. So definitely think that free writing (or prewriting) is an absolute when first starting out on any paper. Plus then I will have something to work with other then a blank page and a headache.