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In this Sept. 20, 2018 photo, fifth grade student Ashlynn De Filippis, left, works math problems on the DreamBox system as teacher Heather Dalton, center rear, works with other students in class at Charles Barnum Elementary School in Groton, Conn. A wide array of apps, websites and software used in schools borrow elements from video games to help teachers connect with students living technology-infused lives. (AP Photo/Michael Melia)

In this Sept. 20, 2018 photo, fifth grade student Ashlynn De Filippis, left, works math problems on the DreamBox system as teacher Heather Dalton, center rear, works with other students in class at Charles Barnum Elementary School in Groton, Conn. A wide array of apps, websites and software used in schools borrow elements from video games to help teachers connect with students living technology-infused lives. (AP Photo/Michael Melia)