Given that it's after 10:30 a.m. here in the eastern time zone, many of you are probably already gearing up and won't read this until Monday at the earliest. But I'll post anyway.
First a little weather-related information: this post by Bryan Caplan at Econlog is appropriate and something to get the brain cells stirring.
Next, as you strike deeper into the heart of AP or IB Macro, here are some good charts (HT to Chartporn) to use. The first is from The Financial Times (free registration may be necessary), and looks at, among other things, GDP of the G7 and the BRIC countries (Brazil, Russia, India and China). The supporting story is also interesting. The second link is to Bloomberg and examines the recently discussed revision to the unemployment figures. One of the more informative aspects is how certain models affect other models and/or data. At the very least, it helps students understand that economic data is not always exact.
I welcome your comments.