so basically, when youre given a sequence of numbers, you have to first rearrange the numbers in order from least to greatest.
5, 6, 8 10, 11, 12
then you find the very middle number!
5, 6, 8, 10, 11, 12
sometimes, its not one, but 2 middle numbers. in this case, 8 and 10
you add them together, and divide by 2, since there are 2 of them.
8+10= 18
18 ÷ 2= 9
median is 9