8.NS: This lesson unit is intended to help you assess how well students are able to distinguish between rational and irrational numbers. In particular, it aims to help you identify and assist students who have difficulties in: • Classifying numbers as rational or irrational. • Moving between different representations of rational and irrational numbers.Supports the following Standards of Mathematical Practice • 2 Reason abstractly and quantitatively. • 7 Look for and make use of structure. • 8 Look for and express regularity in repeated reasoning.