Brain teasers are puzzles that challenge your thinking and problem-solving skills. Solving brain teasers helps improve memory ...

Officials in hard-hit Kerr County, Texas, which was ravaged by flooding earlier this month, say the number of people believed to be missing has dropped from nearly 100 to three. In a statement ...

Students in Melissa Williams' kindergarten class at the Westminster School in Atlanta, Georgia, practice connecting quantities to written numbers — a key part of number sense. Credit: Holly Korbey for ...