Help your students conquer common core by Partitioning circles and rectangles into two, three, or four equal shares, describe the shares using the words and describe the whole as two halves, three thirds, four fourths. These worksheets are great for morning work, seat work, math centers, math stations, homework, or extra practice. Motivate your students with our NO-PREP Worksheets! These worksheets are great for morning work, seat work, math centers, math stations, homework, or extra practice. T