Complex sentence: He was certified to teach at the Toronto District School Board in September of 2004 but resigned from the board in August 2006 after being charged with assault, sexual assault and voyeurism offences against two teenage female students.
Split into simpler sentences: He was certified to teach at the Toronto District School Board in September of 2004. He resigned from the board in August 2006 after being charged with assault, sexual assault and voyeurism offences against two teenage female students.