Can someone please help me with a basic physics problem (electrical circuit based) ?

I am building a system that uses 2 small electrical motors (1.5V each). The problem is that I need to figure out a way to be able to rotate the engines in both ways (CW and A CW) using 2 ons for each motor (each on must close one contact). So basically we have a motor and 2 simple ons ... How would the circuit that would allow me to spin the motor in both ways, look like ? Thank you !