What is the instructor describing?

Hello! I am Sammy Davis! Before we start our first lab, I’d like to tell you a little bit about the workbook we’ll be using.
    The first thing I’d like to point out is that the workbook contains a very large amount of material, far more than you could ever handle in a single semester. What you’re supposed to do is choosing the experiment and activities that you want to do, within a certain framework, of course. Part of my job is to help you make your choices.
    Next, I’d like to mention that in each workbook chapter, there are usually two sub-sections. The first is called "Experiments" and the second is called "Activities". In the "Experiments" section, the workbook gives full instructions for all the experiments, including alternate procedures. You may use the procedure you wish on the basis of available equipment or personal preference. In the "Activities" section, you will find suggestions for many experiments, exercises and projects that you can do on your own time. You’ll see that there are usually no detailed instructions for the activities. You’re supposed to do them in your own way. If there are no questions, let’s turn to Chapter One now.