Keith Harmon estimates he has more than 200 pounds of Lego bricks in his Penn Township home. “There’s not a lot of room to move,” Harmon joked. “I have Lego stuff pretty much anywhere you can imagine.

CORPUS CHRISTI, Texas — Nearly 100 students at Club Estates Elementary School have joined a new Robotics/LEGO Club, an extracurricular program designed to spark interest in science, technology, ...