Conversation so far:
When did Tyson Chandler begin playing basketball?
Chandler began playing basketball at the age of three years on a basket Chandler's grandfather, Cleotis.
who were his parents?
Frank Chandler and Vernie Threadgill.
Where did he grow up?
He grew up in a family farm in Hanford, California, just south of Fresno, California.

Question: When did his high school career begin?
Self-contained rewrite: When did Tyson Chandler's high school basketball career begin?