Simplify the following text for a Grade 4 native English-speaking person.
Original: When his parents divorced in 1968 , his father , a high school teacher , moved to Michigan and Keenan would only see him about once a year for the next 12 years .
Simplified: Keenan 's parents divorced when he was three years old , and Michael moved away . Keenan did not see him very much for the next 12 years .