"Blog" comes from two words: web log
Get it?
The purpose of your blog is to inform each other. This is important: your audience is the other students in this class. You need to carefully select information and present it in interesting ways that will help other students to understand and make decisions about their world-- don't waste their time!
So, what should you write in your first blog? An introduction! Not about you, but about your topic-- tell us: the background information you know about this topic, your reasons for choosing this topic, and then give 3-5 BIG questions you hope to explore and maybe answer during your research this semester. Remember that a BIG question does not have an easy yes or no or factual answer. A BIG questions makes you think and really have to dig in to figure it out.
When you're done with your 1st blog post create your user profile, play with your settings and layout, view your blog, help your friends, leave a comment on one of the other students' blogs. Your comments should be insightful and helpful. Offer ideas on their blog design and layout, aspects of their topic that they can explore or ideas about where they can find information.
For this blog you will be graded on standard 1.1.b (Make strategic use of digital media...to enhance understanding and add interest); 3.2.d (language choice) and 3.3.a (conventions).