Teachers made a difference in a study of identical and fraternal twins, reports Reuters. The Florida State study, published in Science, looked at the reading skills of more than 800 pairs of twins in first- and second-grade classrooms in Florida.
When twins were assigned to different teachers, their outcomes differed depending on the teacher’s skills:
If one identical twin excelled with a good teacher, the other did too. But if one twin had a strong teacher and the other twin had a weak teacher, twins with strong genetic potential did just so-so in the poor teacher’s class.
Researchers used the Oral Reading Fluency test to determine how much progress children made in reading from the beginning to the end of the year.