Taiwan shines at Beijing cultural expo

Visitors were fixated as Yeh Kuoyi swiftly twisted puzzle-like plastic pieces into different shapes at the Taiwan pavilion, during the 14th China Beijing International Cultural and Creative Industry Expo in late May.

Yeh, who's from Taiwan, invented the toys over two decades ago to help children appreciate math.

He has attended similar exhibitions on the mainland dozens of times over the past decade, he says.