Grammy winners Aura Valentina Simmons, 8, and her father, Harold Simmons II, sing during a morning practice session in their home recording space before she goes to school in Charles County, Maryland. They go by the stage names Aura V and Fyütch. Dee Dwyer for NPR hide caption

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Dee Dwyer for NPR

Aura Valentina Simmons, aka Aura V, may be the youngest-ever individually named Grammy winner, but in her third-grade classroom, she uses the same blocks to figure out fractions as everyone else.

"I don't really know about Grammys," Pragat Patel, Aura's desk mate, said with a shrug this week.

"That's the energy I like — chill," Aura said, giggling.

In the classroom, decorated with hand-drawn posters and colorful, large block letters, the real clout is victory in the online fraction game 99math .

In that realm, Pragat usually triumphs over Aura. But in the front pocket of his blue-and-white shark backpack, underneath tissues and some Pokémon cards, Pragat carries a signed autograph from Aura.…