This week in Maths we have been learning about the teen numbers.
We have been thinking about each number as 10 and some more. For example, 11 is 10 and 1 more.

We have been using ‘Base 10’ equipment to show the tens and ones within these numbers.

We also looked at the numbers written as a number and as words. We noticed these patterns:
- The numbers 13 – 19 all end with the word teen, and that teen is quite similar to the word ten.
- 12 and 20 both have a 2 in them.
- 10, 11, and 12 all start with the a 1 but they don’t have the word teen in them.
- When we say 14, 16, 17, 18 and 19 we say the amount more than 10 e.g. 19 is 9 more than 10 so we say nine in nineteen.

Here is some of the learning we have been doing this week:
How to support at home:
- Practise counting forwards and backwards to 20 – make sure you say the teen numbers correctly i.e. nineteen instead of ninety
- Use your toys to represent tens and ones e.g. Lego. Practise exchanging 10 ones for 1 ten and vice versa.
- Look out for numbers in the environment, can you spot any teen numbers? How many more than 10 is each number that you find?