From the Globe

In a small, ground-floor classroom packed with learning activities and restless first-graders, Katerina Lewinsky was trying to solve a problem.

“Where do you need to tell Mario to go?” asked her teacher, Marina Vyrros. “What are the numbers over there?”

Lewinsky looked back at Vyrros with giant brown eyes, spoke softly, then turned and used an electronic stylus to point to a spot on the Smart Board before her.

Vyrros said the coordinates aloud: “X-five, Y-minus-two.”

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