On my gliders I don't use an elevated wing as Unome said, I prefer to induce all the turn with rudder.
When you build your glider, the rudder or vertical stabilizer should have its trailing edge off to one side relative to the leading edge. I like my gliders to turn to the right, so I glue the rudder to the right side of the fuselage, only gluing the front of the rudder in place, and then using shims and the natural springiness of the balsa wood to push the trailing edge of the rudder out further to the right, so that the amount of turn is adjustable for flying spaces of various sizes.
2015-16 Events: (CMHS Invitational/Southern CO Regional/CO State)
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Chem Lab: //
Electric Vehicle: //
Bridge Building: //
Lewis-Palmer High School class of 2016