I am preparing to give a presentation next year about teachers using twitter. As I prepare that presentation, I have been reflecting on my current use of twitter. This led me to a decision to focus during the upcoming week on how twitter has helped me to improve as an educator. Each day this week, I will write about how I use a single tweet to help improve my students, my colleagues, my school, or myself. Check back each day to see how my PLN and twitter can "tweek my week."