Finger counting: friend or foe? Preschool teachers are divided. Some see it as a sign kids are stuck, while others view it as a powerful math tool. A new study by researchers in Switzerland and France ...

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.

Counting on fingers really does help youngsters improve their maths skills, according to a new study. The research is the first to show that children's performance in arithmetic can show a "huge" ...