The 3- and 4-year-old students in Phil Wrigley’s nursery classroom at the British International School of Chicago, South Loop were on the hunt to find items starting with the S sound that were ...

A third grade student sets the last domino down in a row along the edge of a table while playing in Crystal O’Brien’s classroom at Shidler Elementary School in Oklahoma City. Credit: Ariel ...

OKLAHOMA CITY — Two third-graders sat on the floor of their classroom and lined up a row of dominoes along the edge of a low-lying table. They positioned themselves at each end of the row of ...