# Step 1

Read, write and order whole numbers to at least 1000; know what each digit represents

## Probing questions

• Which numbers are easiest to write down? Which do you have to think about?
• When ordering a set of numbers, what do you look for first?
• How do you find the smallest number/the largest number? What clues do you use?
• What do you do when the numbers you are ordering have the same hundreds digit/tens digit?
• Can you explain to me what you would do to order 384, 356 and 401?

## What if pupils find this a barrier?

Place value cards are useful to practise the concepts with pupils:

• Use digit cards to show me 364. What does the three represent? Remove the four. What number have you got now? What does the three represent now? Why is it different from before?
• Use digit cards in pairs or threes (then you can have numbers with repeated digits) to make different numbers.

Use a guessing game to guess mystery numbers between one and 1000, using 'higher' and 'lower'.

Give pupils a matching activity with common misconceptions, e.g.:

• three hundred and five
• three hundred and fifty
• 3005, 305, 350, 30 050.

Mathematics ITP: Place value (SWF-18 KB) Attachments will help pupils to see the value of each digit.