Generally you should be working through chapter 10 on the Collapse of the Weimar Republic/Rise of the Nazis. Have a look at some of the BBC Class Clips on this topic.
In case you want to do more work on the Unification topic, go back to this post. Beware though, within that post it mentions an essay that you won't be doing. In fact IT IS the esaay you'll be doing! Download the essay plan that YOU WILL BE DOING below: