Jon Shapley for KUT News

Elgin Middle School sixth grader Allison Graves sits at a computer in math class, using a program called Think Through Math to practice fractions.

“Your friend gave you a bag of candy," she reads. "There are 36 red candies and 27 green candies. What is the ratio of green candies to red candies?”

The online math program takes Graves through each lesson step by step. She collects points for correct answers and competes against classmates and other Texas students.

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