Step 3 Objective

Recognise and extend number sequences formed by counting from any number in steps of constant size, extending beyond zero when counting back.


Probing questions

happy learners

I know a secret sequence. It has these numbers in it: 13, 15, 17, 19.

What numbers come next in my sequence? What numbers come before? What clues did you use to work this out? Give me a number that is greater than 50 that is in my secret sequence. Tell me how you know this number is in my sequence. How could you check? Is 64 in the sequence? How do you know?

Use similar questions for a range of sequences.