What does the time signature tell us? Why do you think it is important to know the time signature?

The time signatures top number tells how many beats are in each measure and the bottom number tells what note will have one full beat.

For example 4/4 means four beats per measure and that the whole not will recieve one beat

I do think that the time signature is important because it tells the beat of the music how long a note is. It also tells you how many beats there are going to be per measure.