Overheard near Sacramento, California, where NorCal approach and departure is training a large number of new controllers:

Cessna 12345:
"NorCal approach, student pilot, Cessna 12345. Heading 024. 1500 feet, climbing to 5500."

NorCal Approach:
"Cessna 54661, student controller. Roger radar contact."

Michael Fedoryk
via e-mail