Nobody can deny that teaching is hard. I strongly believe that teaching is one of the most essential skills to learn in this century. Whether you are a junior software developer or a renowned member of a firm, your ability to communicate your knowledge effectively will determine your future success.

In this 15 min video, I teach how the Quicksort algorithm works the old way: with a blackboard and chalk. As you can see, I made many mistakes. Considering that I spent two hours preparing for this, my performance was not as good as expected.

It was, however, not that bad. Isn’t it?

Wrapping Up

For my this session, these are some preparation tips that helped me:

• Prepare a script of your presentation; having something written helps to clarify ideas and to sharpen the vocabulary for the session
• Record me during the rehearsal: it is incredible the many mistakes that we overlook if we don’t see ourselves during the performance
• Move my hands and speak slowly: the corporal language is essential, this is something that I’m still learning from the best speakers
• Practice, practice, and practice