A squashed sentence is when two sentences are squashed together without any punctuation.
An example: The fire was burning I was terrified.
This should be: The fire was burning. I was terrified. (…or some other punctuation, but not a comma)
We can also join two sentences with conjunctions.
An example: The fire was burning and I was terrified.
In class, we are focusing on separating two squashed sentences with a full stop.
To help at home, you could ensure that children are pausing at full stops in their reading. You could also write two sentences, based on the weekly spellings, which are separated by a full stop in the incorrect place, such as I went. Camping it was fun. Read the sentences together and see if your child could fix it.