Chapter 4: Mathematics in the World


Mathematical diversity highlights the importance of cultural diversity and varied approaches to mathematics, valuing different perspectives and thinking styles. Racial segregation in schools is linked to achievement gaps, and research suggests reorganizing schools to promote equality. In preparing students for success in college-level mathematics, students must be fluent in number sense, data literacy and problem solving, and linear relationships.  In this chapter we are introduced to the concept of "math-ish," where numbers used in real life are often imprecise estimates, referred to as "ish numbers." Understanding whether a calculation result is reasonable is crucial. The importance of discussing data to enhance comprehension is also emphasized.

Key Math-ish Principle(s): 

Understanding mathematical ideas in the world.

Key Ideas/Themes:

Reflection Questions:

After reading this chapter reflect on the following questions. Think about: