Maths
Today's lesson focuses on addition fact families. As well as understanding and being able to write 2 + 3 = 5 and 3 + 2 = 5, children need to understand that 5 = 2 + 3 and 5 = 3 + 2. In time they will be able to use their knowledge of one of these facts to derive the other three addition sentences.
Here is an example of an addition fact family to go with the part whole model that we have already looked at.
2 + 3 = 5
3 + 2 = 5
5 = 2 + 3
5 = 3 + 2
Watch today's video then complete the sheet below.
There is a small error on the worksheet below. Look at question 2b. There are not four different addition sentences that can be made using these numbers, only two. 5 + 5 = 10 and 10 = 5 + 5.