How do i light many LEDs and control them individually

fungus:

spacemunki:
We just started using arduino in college.
For a project my friend and I want to be able to control a string of led's.

What do you mean by "control"? What do you mean by "string"?

spacemunki:
How can we use the led's without being directly connected to an arduino and breadboard?

What do you mean by "use the leds"?

The first step towards getting answers is to ask good questions.

spacemunki:
Aslo how would 50 led's be powered?

With a power supply.

Granted the OP was a little ambiguous in his question but I don't think that warranted such a condescending post.