How to insert "backgrounds"

It is not so easy to make or to apply a background image specially when there 's no instructions or it is difficult to you when you are not listening. In my activities 8-10, I have many discoveries that I learned. Not only applying image, but also on how to edit and to change the background colors, insert font size etc.. In applying this image, color and fonts .. it's very interesting...but it's also difficult.
While doing my activities, I encountered some problems. My problem is I didn't understand the instructions and I don't know what to do in my activities/
Thanks for my classmates because they teach me on how to do this better. From now on..I will listen, analyze the instructions and understand it. So that I will know what to do on the next activities.
Moving on...I will do my best to understand carefully the instructions.