HELP with Unit 5 Chapter 1 Lesson 6

For this particular lesson, I am not quite understanding the section “Encrypt your Own Message”. How is this section different from the other 2 sections in this assignment?

I am fairly new to coding, by any chance is there an example I can go off by to better help my students?

I hope this message is still timely for you. There is a teacher example/answer key in the teacher resources. Essentially, the kids will be using the codes they learned from the top of the sheet to create a new encrypted message with their own encryption key. There is an exemplar example in the teacher section at the bottom of this page.