Utah Core Standards
UT.2.G. GEOMETRY (2.G)
Reason with shapes and their attributes.
2.G.3. Partition circles and rectangles into two, three, or four equal shares; describe the shares using the words halves, thirds, half of, a third of, etc.; and describe the whole as two halves, three thirds, or four fourths. Recognize that equal shares of identical wholes need not have the same shape.