Use chalk to trace the whole plate on the board. Explain to students that a whole can be made of many equal parts. Then give them one set of fractions at a time to fit into the circle outline. Tell children the name of each fraction section as they fit it into the circle (for instance, one-half, one-third, or one-sixth). To extend, show children how to write addition equations with the fractions. Use this opportunity to explain that when the numerator and denominator are the same number, the fraction equals a whole, or 1.
Using the circle outline and fraction sets, have children fit different fraction combinations into the circle to complete the whole. For example, they can fill the circle with one , one , and two sections. As children work with this activity, guide them to discover how the different-size fraction sections relate to each other as well as to the whole circle. Ask them to write equations to show these relationships.