Take three hands-up answers, not open call-outs. Write each suggested number on the IWB and slot it into a quick place-value frame so the columns spread out under it.

If a pupil offers a number with millions, that is brilliant: name the column and tell them we will see how it lives in the same frame as the smaller numbers today.

Work smaller to larger so the columns build upward. Between numbers, take a hands-up or turn-and-name, then revoice the best answer.

4,073 — point at the zero in the hundreds column: what is holding that place? Draw out that the zero keeps the 7 in tens and the 3 in units.

9,999 — four right columns full, TTh empty. Ask what comes next; pause before showing that every column rolls over and a 1 lands in TTh to make 10,000.

12,508 — TTh now has a digit; ten-thousands is today's new word. Note the zero in the tens column. Ask someone to read the whole number.

405,612 — name the hundred-thousands column and tie back to the big numbers they called out at the start.

Keep returning to the base-ten rule: each column left is worth ten of the one on its right.

This round is for talking it through together — a pupil builds at the board while the whole class reads each number aloud, then agrees or corrects out loud.

Call one number at a time: 3,072 → 70,309 → 105,008 → 800,070. Each one has at least one zero acting as a placeholder. Have the class read each number aloud before the builder finishes, then check digit by digit against the columns.

Watch for pupils who drop a zero and slide the other digits over — that is the misconception to head off. Revoice: so the zero holds the column open and keeps every other digit in its place.

These are the practice questions — 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.

Give each target a quick 'what is tricky about this one?' before the builder starts:

• 8,004 — zeros in the hundreds and tens columns, with the 4 sitting alone in units.
• 60,030 — zeros in three columns; only the ten-thousands and tens are filled.
• 200,109 — leaps to hundred-thousands with a run of zeros, then a 1 in hundreds and a 9 in units.
• 700,005 — almost all zeros; only two non-zero digits, far apart at the two ends.

Let the strongest pupils predict the column count before building; everyone enters by reading the number aloud.

Keep this brisk. The whole-number place-value frame built today is the launch pad for decimals next lesson, where the same ten-times rule runs to the right of the units column.