Vox recently featured an excerpt from my new book Learn Better. I pasted the nut of the story below:
As a technology, the abacus predates the making of glass and the invention of the alphabet. The Romans had some sort of counting device with beads. So did the early Greeks. The word “calculate” comes from the expression “drawing pebbles,” basically using some sort of abacus-like device to do math.
Researchers from Harvard to China have studied the device, showing that abacus students often learn more than students who use more modern approaches. UC San Diego psychologist David Barner led one of the studies, and he argues that abacus training can significantly boost math skills with effects potentially lasting for decades. “Based on everything we know about early math education and its long-term effects, I’ll make the prediction that children who thrive with abacus will have higher math scores later in life, perhaps even on the SAT,” Barner told me.