Here is a sentence: Aoife has some sweets, and then she gets 5 more.
We do not know how many sweets Aoife started with. Instead of writing a number we do not know, we can use a letter. If we call her starting number t, how could we write in symbols what she has now?
Watch four word situations turn into expressions on the board. In each one, look for the word that tells us which operation to use.
Now a situation where a number is taken away. The order matters here.
Now a shopping situation, where the same item is bought again and again.
And one where an amount is shared out fairly.
Today we build expressions together, one at a time. Name the operation word before we write the symbols. We will work through these situations:
In your maths copy, write each of these word situations and its expression side by side, one under the other. Circle the operation word that gave you the sign.
Today we work through these, each one a step harder:
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