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This is Scientific Americans' 60-second science. I'm Erica Barris. Got a minute?

The ways teachers view their students can influence how teachers teach, which affects how and what students learn.

Now a study finds that a teacher's racial biases come into play in different ways for high-achieving kids versus low-performing ones.

There are actually students that are experiencing different perceptions and that those

different perceptions play into very specific stereotypes and ideas about capabilities.

Sociologist Yasmin Irizari of the University of Texas at Austin.

She published her findings in the journal Social Science Research.

Irizari used data from the early childhood longitudinal study collected by the National

Center for Education Statistics. She compared the test scores of more than 10,000 first graders

to how teachers ranked their students in comparison to all other first graders. Teachers made accurate

ratings of average students regardless of race. But when considering students of color, teachers

rated low-performing black, Asian, and Latino students more positively than they did their

low-performing white students. And teachers ranked high-performing minority students lower than white students at the

same level. Interestingly, the race of the teacher was not a factor in the skewed evaluations

based on the race of the students. On both ends of the spectrum, the teacher's predispositions

could have detrimental effects on students, either by insufficiently challenging gifted kids or not fully

recognizing the needs of struggling young students.

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