The following documents will help you construct your arguments.
Debate: a formal and organized argument about a resolution (the issue)
Resolution: a statement that clearly expresses one side of an issue (BIRT all students should wear school uniforms.) All resolutions start with BIRT - Be It Resolved That ..
Affirmative Team: the team which argues the pro or YES side of the resolution (students SHOULD wear school uniforms)
Negative Team: the team which argues the con or NO side of that resolution (students SHOULD NOT wear school uniforms)
Contentions: all points that support the argument, whether pro or con
Rebuttal: pointing out the faults of the arguments of the opposing team