A Carroll diagram cell combines its row and column labels

Start with a small set of clear examples and say both properties for each placement. Reading across and down together helps children understand the four cells instead of memorising where one familiar card happened to go.

To hand: A labelled two-by-two grid.

1. Read row labels.
2. Read column labels.
3. Place each example.

Name the two statements that describe the cell

A large non-triangle needs the large row and non-triangle column.

Read both row and column labels aloud for a sample cell. Combining the labels explains why that item belongs there.

Which two statements describe this cell? Use explicit words and pictures.

Check both labels for every cell.

Resources

• My Puzzle Strategy — Record a strategy and one specific observation about how it helped.

Further reading

• Australian Curriculum Version 9 — Critical and Creative Thinking

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