Target/codes: represent an add-to action with a visible start, added part and end within 10; AC9MFN04, AC9MFN05. Prepare: P156 four large paper sign cards plus three separate cards, change-story mat.
- Notice · 3 min. Tell the invented sign-table story: four signs are on the tray; a volunteer brings three. Ask what action happened before asking for a total.
- Model · 4 min. Place four under START; keep three visibly apart under ADD. Move them in one group and count/separately recognise the small parts. Show 4 and 3 make 7.
- Guide · 5 min. Reset. Child acts out the arrival using broad pieces or directs an adult. Ask which four were there first, which three joined, and whether any left.
- Independent route · 7 min. Choose Day 156 A/B/C, perhaps retold with pretend tickets or paper flowers but the same counts. Require start/change/end and an accurate 7.
- Evidence check · 4 min. Hide the added three behind a labelled card but do not remove them; ask how the child could verify seven rather than guess. Reopen and count if needed.
- Exit · 2 min. Child names or shows the arriving part. If only final count is given, practise showing the action with a different safe set.