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Can you tell me a little about what the Espionage and Sedition Acts were? That will get you off to a great start and from there thinking about the effects and relating it to a specific case should be easier.
PS: the Schneck v. U.S. Supreme Court case was the first time the Supreme Court heard a case about a 1st amendment challenge. The Espionage and Sedition Acts are all about the 1st amendment, and this case is one example of how the government upheld the idea that there were exceptions to free speech. They clarified "protected" and "unprotected" speech for the first time as a result of this trial.
Espionage Act was passed by Congress in 1917. This made it a crime to interfere in the induction of soldiers or to knowingly refuse the draft. Together with the Sedition Act of 1918, it became a crime to speak out, write, or engage in any activity contradictory to the government’s war efforts. Socialists like Eugene Debs viewed this as a problem in government, however when he spoke out against it he was put in prison.
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Sedition act was an Act of the United States Congress that extended the Espionage Act of 1917 to cover a broader range of offenses, notably speech and the expression of opinion that cast the government or the war effort in a negative light or interfered with the sale of government bonds. 
OK, awesome. So now you just have to add a description of the Supreme Court case (make sure both are in your own words.) After that, the last step is to connect those two things and talk about the effects they had --
So if the Acts basically said it was OK for the US to prosecute people for expressing anti-war opinions and pretty much disregard freedom of speech, how do you think that affected the US?
I don't know I mean its a work sheet.
OK so just say they restricted freedom of speech by saying people couldn't express anti-war opinions, something about the case (I don't know much about that, sorry) and that it affected people by restricting what they could say and turning opinion into a criminal offense, which was something the Consitution was supposed to protect against.
(Does that make sense? Sorry, I was overthinking it before ... :P)