In class we will be using a ten frame to help us. Our first ten frame will be full as we are dealing with numbers more than ten. I need a second ten frame. Have you got one?
Let's have a look at how to make the numbers, it goes like this...
11 is 10 and 1 more.
12 is 10 and 2 more
13 is 10 and 3 more.
14 is 10 and 4 more.
15 is 10 and 5 more.
16 is 10 and 6 more.
17 is 10 and 7 more.
18 is 10 and 8 more.
19 is 10 and 9 more.
20 is 10 and 10 more.
Have a go at making these numbers at home. You could use Lego, Duplo, buttons, pasta - anything that you have a lot of.
Estimation:
Can you grab a handful of one of your items and estimate how many you have in your hand?
Did you guess correctly or was you estimation a number that was more or fewer then the items in your hand?
