One Hundred Problems Involving the Number 100 A Collection of Problems to Celebrate NCTM's First Century

The problems in One Hundred Problems Involving the Number 100 celebrate the "Goldilocks" charm of 100-a number not too small, not too large, but just right to challenge students without intimidating them. It's used in myriad ways within the problems: as an exponent, product, area, or perimeter; a constant in an equation; the number of items in a series or sequence; or as a physical value, such as a stack of 100 coins, a deck with 100 cards, or a jug that holds 100 ounces.

One Hundred Problems Involving the Number 100 is not just a list of problems.

• The problems are designed to promote classroom discourse, allow students to think deeply about mathematical concepts, and learn problem-solving strategies, as well as to make connections between different topics in mathematics.
• The purpose of the problems is to promote a variety of problem-solving strategies.
• A range of mathematical topics from patterns, conversions, and sums and series to number theory, functions, probability and statistics, and geometry are covered.
• The problems are aligned to Common Core State Standards for content and math practices. The chart in Part 3 lets teachers find problems at an appropriate level of difficulty for their students.
• For each problem, there is a description of how the problem might be used in the classroom, suggestions for how to provide assistance to students without divulging the answer or even exposing a solution strategy, and possible extensions.