In Team Policy Debate, there are a total of 8 speeches in the round -- 4 delivered by the Affirmative team and 4 delivered by the Negative team. 

The first speech in a Team Policy Debate is called the 1AC -- this means it's the 1st speech from the Affirmative team and it's a constructive speech (rebuttal speeches are in the 2nd half of the debate).  The purpose of the 1AC is to set the foundation of the debate -- identify a problem that is aligned with the overall resolution, present a solution to that problem, and rough plan of how to implement the solution.

In this video, Evan Bell (a senior debater) presents his 1AC to the judges and the Negative Team at the Nationals competition in Boston.