How did the new deal attempt to address the impact of the great depression?

The New Deal addressed the security issues that caused the depression in the first place. The FDIC was created that ensured money so that a mass craze of withdrawals won't happen again (that's how many small banks crippled because so many pulled out their own money and they couldn't function). The New Deal created the Social Security Act which allowed for benefits for those who couldn't' work. 

Basically, the New Deal gave American a new start and a chance to those who lost everything because of it.