Frances S. Tucker Elementary School fifth grade teacher Yaliesperanza Salazar. Math lessons are carefully designed to match Florida's new Common Core-based standards.

Math educators share their favorite lessons, including taking students for a walk around a fenced-in field, investigating student-loan costs, and working alongside a language arts teacher.

The IBM Foundation has launched a website called Teacher Advisor with Watson, which uses artificial intelligence to find high-quality elementary math resources and lessons.

Teaching Common Core math: Most elementary school teachers did not learn math this way, and many now struggle to teach to the new standards.

The popular language learning app is betting that its gems, streaks and leaderboards will teach elementary school children—and adults—basic math.

A sixth grade math teacher breaks down his probability lessons to his class by discussing desperation plays for Super Bowl Sunday.

In January 2012, a Georgia elementary teacher came under fire after using slavery references in math problems assigned to 8-year olds.