Guess my Number – Letterboxes

Go for a walk with the grade to look at the letter boxes. Take a photo of your favourite letterbox.

Lets pick one letter box number.

How many different ways can we make this? e.g. number line, tens frame, number before and after

Guess my number:

Now you have to create some clues for your secret number.

Think about:

• Number before/after (number lines)
• Tens frames 
• How many tens and how many ones
• Is your number one digit, 2 digit.
• You might even include addition and subtraction equations.

You might come up with some other ideas

Enabling – numbers under 10

Extending- numbers to 20