NPR's Juana Summers talks with Regina Barber and Emily Kwong of Short Wave about "scuba-diving" lizards, a trick to turn a mouse's skin transparent and whether finger counting helps kids' math skills.

Preschool teachers have different views on finger counting. Some teachers consider finger counting use in children to signal that they are struggling with math, while others associate its use as ...

Finger-counting is a key "stepping stone" to higher math ability for youngsters, say scientists. Children who count on their fingers between the ages of four- and six-and-a-half years old have better ...

Children who count on their fingers between ages 4 and 6 1/2 have better addition skills by age 7 than those who don't use their fingers, suggesting that finger counting is an important stepping stone ...

Preschool teachers have different views on finger counting. Some teachers consider finger counting use in children to signal that they are struggling with math, while others associate its use as ...

Children who start using their fingers early are more likely to become better at calculating later, a Swiss study has found. Photo: dpa/Marcel Kusch Counting on fingers in primary school is not a sign ...

Children who count on their fingers between ages 4 and 6 1/2 have better addition skills by age 7 than those who don’t use their fingers, suggesting that finger counting is an important stepping stone ...