Key learning points

1. A whole group can be split in different ways and the 2 parts may look different.
2. Add a numeral to the whole position when the objects have been moved out.
3. Use part-part-whole diagrams in different orientations.
4. Include examples where the two parts contain the same number of items.
5. Represent the whole and the parts using numerals alongside the concrete and pictorial representations.

Common misconception

Keywords

• Whole - All of something. Complete.

• Part - A piece of a whole.

• Partition - To break up a whole into parts.

• Part-part-whole - A pictorial representation that shows the whole and its parts.