# C01 · Complete teaching source

Invented display record: A round paper badge has a narrow striped rim and a square hole in its centre. A plain round badge beside it has no centre hole. Neither badge has an owner label.

## Child invitation

Help someone find the badge with the hole. Which words would you use?

## Staff possible reasoning

The round badge with the square centre hole distinguishes the chosen drawing. The striped rim adds another recorded detail.

## Next teaching

Hide the model wording, reread the two descriptions and ask which detail would still separate them if the stripes were covered.

## Limit

A hole or stripe does not identify an owner or a real material strength.
