A number whose decimal form is nonterminating and nonrepeating. Irrational numbers cannot be written in the form a/b, where a and b are integers (b cannot be zero). So all numbers that are not rational are irrational.
Rational or Irrational?
: Determine whether ratios and fractions are rational or irrational.
: Approximate pi with a rational number.
: Explore the relationship between a fraction and its decimal equivalent.
The Life of a Natural Number
: Determine the behavior of natural numbers given that even and odd numbers act differently.