Read the passage.
excerpt from You Should Meet: Katherine Johnson by Thea Feldman
Before she turned six, Katherine finally started school. Because she could already read, she skipped first grade. She would skip fifth grade too. In school Katherine always had her hand in the air to ask questions. Her teachers encouraged her.
Each night Katherine and her siblings did their homework seated around a big table. “After I finished mine, I’d help them with theirs!” she recalled.
Katherine grew up in a family that valued education.
Which detail from the passage best supports this inference?