This means more than simply having students memorize and apply formulas. Students should learn to recognize, extend, and generalize linear patterns, and to represent algebraic relations in tables and graphs as well as by formulas. They need to know how to compare geometric objects in terms of their properties and relationships, and to apply geometry in their daily lives. The challenges draw on familiar situations like waiting in line to buy tickets or on intriguing ones, like whether there are trees so large you could drive through them with a car. But just because the challenges are engaging and fun doesn't mean the mathematics isn't serious.
Solutions often involve a number of different mathematical ideas.
And by encouraging families to work these challenges at home, we emphasize the idea that mathematics doesn't happen just at school. The website will feature challenge solutions, other mathematical applications, and resources for further study. Members of National PTA can participate in the campaign in a number of ways. Set aside time as a family to do them, and bring them to the attention of community-based organizations. The challenges can also serve as part of community-wide conversations about the mathematics students need to excel in the 21st century.