Techniques in first 4 chapters

Techniques- Omniscient narrator (all knowing) 

                    - Dramatic Irony

                     - Dialog

                    -Description (sparse) 

                    Action (used to develop characters and Enders thoughts)

1. Name one technique you feel the author successfully utilized in the first 4 chapters. In one sentence say what the technique is and how it is successfully used in the book. Omniscient narrator- this technique is used successfully because not many people understand how Ender feels but the narrator can explain how he feels, what he is thinking and what he is going to do. This helps the reader understand Ender and create an emotional connection towards him.
2. Find at least two examples of this technique in different chapters. "The monitor gone. Ender tried to imagine the little device missing from the back of his neck". "It was not his fault he was a third. It was the Governments idea, they were the ones who authorized it- how else could a Third like Ender have got into school?" 
3. Discuss how the author is using the technique in the section where you find it and why it is important to the novel. (You can not say 'he uses it to make the section interesting'.) In the first example- (This means that the narrator knows how Ender feels and is knowing of what he is thinking). In the second example- (This shows the narrators point of view he is talking about the origin of 'Third' and why Ender is looked down upon).