Cal-Tech Prep was a 23rd century educational institution on Earth.
History and specifics[]
The high school's curriculum was specifically structured to qualify students for college enrollment at the California Institute of Technology.
In 2273, David Marcus submitted an application to Cal-Tech Prep, and was accepted one month later. He would be required to maintain his current grade performance until he was able to attend in 2275. Proud mother Carol Marcus sent a letter to her son's father Rear Admiral James T. Kirk about David being admitted. (TOS eBook: Shadow of the Machine)