Becoming a Problem Solving Genius: A Handbook of Math Strategies

Becoming a Problem Solving Genius: A Handbook of Math Strategies

Challenge Math For the Elementary and Middle School Student (Second Edition)

Challenge Math For the Elementary and Middle School Student (Second Edition)

Real World Algebra

Real World Algebra

Upper Elementary Challenge Math

Upper Elementary Challenge Math

Primary Grade Challenge Math

Primary Grade Challenge Math

Now You Know -- 700 Challenging Questions for the Curious Mind (Volume 1)

Now You Know -- 700 Challenging Questions for the Curious Mind (Volume 1)

25 Real Life Math Investigations That Will Astound Teachers and Students

25 Real Life Math Investigations That Will Astound Teachers and Students

Scammed by Statistics

Scammed by Statistics

When Math Matters

When Math Matters