Inequality symbols are used to show the relationship between two or more quantities when they are not equal.
We are used to seeing statements like 2 + 3 = 5 in maths without really questioning what the equals symbol means. It actually means that the left hand side is exactly the same as the right hand side - having 2 and 3 of something is exactly the same as having 5 of something.
When the quantities aren't equal, we use inequality symbols to show the relationship between them. When comparing 4 and 3, it would be wrong to write 4 = 3 because 4 is not exactly the same as 3. 4 is greater than 3, so we would write 4 > 3. We could also say that 3 is less than 4, so we would write 3 < 4. The arrow always points towards the smallest quantity.