Hooking up a motor to Vex controller

Okay, I have a DC motor, 1.5-3Volt. I want to hook it up to my Vex controller. Do I need a speed controller? If not, how do I do this?

BTW, I now know how to hook the motor up to a battery pack and a switch. Just random information.

first off the vex is approx 7 volts so you need a separate battery. you also would need a pwm motor controller that runs on 3 volts…

Oh… okay. Well, okay. I guess I’ll stick with the setup I have. A battery hookup through a switch to the motor. I could have sworn I read somewhere that I could use a motor like that.