The effect of a 2-month abacus training on students with developmental dyscalculia.

Developmental dyscalculia (DD) is a specific mathematics learning disorder, characterized by the atypical development of number sense, arithmetic calculation, and atypical development of brain structures and brain activations in core brain regions for number processing. The current study examined the intervention effect of a 2-month abacus training on DD students. Results showed that compared with the non-trained control group, the DD students with abacus training showed higher scores in number sense, calculation, and sustained attention abilities. Additionally, a larger percentage of students in the abacus group showed improvements in the DD screening tasks compared to the control group. The current finding indicated that abacus training or abacus courses can be used as a tool for further DD intervention.