Science: “Number sense in infancy is a building block for later mathematical ability,” say the authors of a study published this week in the Proceedings of the National Academy of Sciences. Ariel Starr of Duke University in Durham, NC, and colleagues studied 48 children at 6 months of age and then again at 3.5 years. To try to determine their intuitive number sense, the researchers showed the infants two sets of dots projected on a screen and looked for those children who noticed which set of dots changed in number. Three years later the children were invited back and given a series of standardized math tests. The children in the top 50% of the math achievement tests also had shown a higher intuitive number sense when they were infants. However, the researchers point out that math ability is incredibly complex and is also shaped by a number of other variables, including experience, education, and motivation. What they hope is that their research may eventually help educators to improve teaching methods.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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