Home Resource Register Login Home Resource Register Login Learning Checklist Understanding a wholeUnderstanding PartsUnderstanding Equal & unequal PartsExamples Test your understanding Understanding Whole A whole is an entire(full) thing. An entire watermelon is a whole. An entire cake is a whole. Understanding Whole and Parts A whole cut into pieces is called a part. A piece of an apple is a part. Understanding Equal and Unequal Parts A whole cut into equal pieces is called an equal part.A whole cut into unequal pieces is called an unequal part. Counting equal parts A pizza on the left is divided into two equal parts.A pizza on the left is divided into four equal parts. Examples: Test Your Understanding Want to practice More! Olympiad Level Questions Still Stuck!