Blog about converting your topic into a problem or scenario
Post to your blog about how you might convert the topic that you posted last week, into a problem or scenario or project or other constructivst-type activity.
See Converting a Topic into a Problem for some help, along with the other resources listed under this week.
You can still change your mind about your topic at any time, if you are have any difficulties.
But also you can just try your best and I'll comment on your blog post too to try to help.
Email me if you have any questions.