Display both amounts side by side and give five seconds of quiet think-time before any hands go up. Take three hands-up answers, not open call-outs.

Do not resolve it here — the point is to unsettle the assumption that the two look alike. The reading and comparison happen in the next steps.

• €1.20 — point to the two 10c coins; ask why we write the trailing zero (one euro, twenty cent).
• €0.85 — no whole euro, so the euro column shows 0.
• €9.99 — 'what would one more cent make?', then pause before saying €10.
• €4.55 — mixed coins; read the euro and cent parts separately, then together.

Keep the narration on what is on screen. Let pupils read each amount aloud rather than reading it for them.

If the IWB or coin-counter is unavailable, build each of these four amounts with the classroom set of plastic euro coins and notes under the visualiser or on a desk the class can see, calling the total aloud as you add each piece.

Talk this one through together — one pupil builds at the board while the whole class names the cent part aloud and agrees or corrects out loud before each tap. That turn-and-name keeps the watching pupils working, not just watching.

€3.05 is the trap: the cent part is only five cent, so pupils must use a single 5c coin with no tens-of-cent coin. They still build the 3 whole euros first (a 2e and a 1e, say), then the single 5c. Ask how they would write it (€3.05, with the trailing zero in the tens-of-cent place because there are no ten-cent coins).

The interactive cycles the four yourTurnPrompts amounts in order. If the coin-counter does not advance automatically after a correct build, clear the tray and read the next prompt aloud (€3.05, then €6.40, then €7.99) so the class builds each amount in turn.

Four short builds with a class read on each fit comfortably in eight minutes — keep each turn brisk and don't over-explain.

If the IWB or coin-counter is unavailable, have the pupil at the front build each amount with the classroom set of plastic euro coins and notes on a desk the class can see, with the same whole-class read before each piece is placed.

This is the practice round — pupils take turns at the board, check each answer, and the class confirms before moving on. Keep the board work brisk rather than over-explaining. €5.05 is a fresh trailing-zero trap: the cent part is only five cent, so hold out for a single 5c coin and the trailing zero in the tens-of-cent place.

The final €9.99 round is the stretch: it asks for the fewest pieces, so pupils have to reach for the biggest coins and notes first (5e + 2e + 2e + 50c + 20c + 20c + 5c + 2c + 2c). Let the class predict how many pieces before checking.

On the fewest-pieces round the counter accepts any total that reaches €9.99 and flags the piece count against par (9) rather than rejecting it. So if a pupil hits €9.99 with more than nine pieces, it marks the total correct but shows the count is above par — prompt them to swap smaller pieces for bigger ones and try again for fewer.

If the IWB or coin-counter is unavailable, run the same targets with the classroom set of plastic euro coins and notes: the pupil at the front makes each amount, and for the final round the class counts the pieces aloud and tries to beat their own count.