FEATURES 
What If We Lived in Flatland? Rick Anderson and Jamie A. Princko Students traverse new mathematical territory as they imagine life in a twodimensional universe. 
All These Rays! What’s the Point? Sally K. Roberts and Carla Tayeh Teacher candidates move beyond “Just give me a formula” to a deeper understanding by exploring the algebra found in geometric models.

The Truth about PEDMAS Jerry A. Ameis A hierarchyofoperators triangle shapes conceptual understanding of the order of operations.

Taiwanese Arithmetic and Algebra JaneJane Lo and FengChiu Tsai Developing problem solving and reasoning, deepening number and symbol sense, and promoting arithmetic and algebraic connections are tenets of Taiwan’s Basic Competency Test.

Making Sense of Decimal Multiplication Margaret M. Rathouz To build student confidence, relate decimals to wholenumber operations, geometry, and measurement.
