Faithin Omaha eBook Collection

Why does it matter whether we state definitions carefully when we all know what particular geometric figures look like? What does it mean to say that a reflecti

Are sequences functions? Why can’t the popular “vertical line test” be applied in some cases to determine if a relation is a function? How does the idea o

Focuses on essential knowledge for teachers about proof and the process of proving. It is organised around five big ideas, supported by multiple smaller, interc

"A series for teaching mathematics."--P. [1] of cover.

How does working with data in statistics differ from working with numbers in mathematics? What is variability, and how can we describe and measure it? How can w