List five lessons or takeaways that you have learned in this course this week that you consider to be important

Hi

1. List five lessons or takeaways that you have learned in this course this week that you consider to be important. Briefly explain each of them. The takeaways you choose can be big or small. What matters is that these were new pieces of knowledge to you.
2. Choose one of the five takeaways and explain briefly how it would solve or help you solve a problem or exploit an opportunity that you have encountered already in your past experience or that you know you will encounter when you go back to your company/or country/ or find a job after graduation.

please write simple because I am a college student