These cards should be used to help students construct the idea of fractional parts of the whole and the concept of unit fractions. Unit fractions are essential to understanding other fractional concepts. Students will learn fractions are numbers by exploring different representations and gain an understanding of a fraction as a relationship between parts and wholes. This activity is aligned to the following two Common Core State Standard domains: Numbers and Operations - Fractions; & Ratios and Proportional Relationships. These cards may be used with partners or as a teacher-led activity with groups of students.