For the final project most people will be posting their PowerPoint presentations directly to their blog. This can be done by uploading your presentation to a slide hosting site like Slideshare or Scribd. (I like Scribd, but know that most of you will be using Slideshare.)

So I figure that you all will be able to manage uploading your presentation to either site.

Then what you want to look for is an embed code to share your presentation. In Slideshare, right at the top of your newly uploaded presentation is a button that says "embed" and once pressed, the code drops down.

If you're using Scribd, the method is the same and the embed button can be found on the right side. After your press it, a new, small window will appear with the embed code (you will want to use the second one, the HTML5 one).

Now that you have copied your embed code from one of the presentation hosting sites, you will paste it into your blog using the "edit HTML" box (upper right corner of your blog post compose box).

Then, once you click back on the compose tab (after pasting the code into your post under the "edit HTML" tab) then voila!
Your slide show should appear!