I love to turn bad situations into opportunities to help others learn. This morning I gave a talk at Twin Cities Code Camp on “Building Mobile Apps with HTML5 and Web Standards”. The talk had a slide deck, but was mostly designed to be a follow-along live demo. When I went in to give the talk, the projector system was locked down. According to my feedback, the talk still worked very well, thanks to the preparation I did beforehand to accommodate for things like this. Hopefully this advice will help you if you’re preparing for a talk in the future.
Practice Writing and Drawing
I have horrible handwriting when I write fast, and when I’m nervous. I teach a lot though and have learned to slow down and think carefully as I write. Having clear handwriting on a whiteboard is really important because you’re going to have to give people URLs to your content. They need to be able to read it at the back of the room, too, so be sure to write big.
Learn to carefully draw simple shapes that resemble things you’d show on-screen. In my talk, I drew the interface elements we’d be creating and was able to show how they’d look.
Have a live copy people can see
Make the finished product available on your website so people can play with it. If you’re building a web site, provide the URL to the demo version. If you’re demoing an iPhone or Android app, have a link to a video that people can watch that shows the app in action if you can’t get access to put the app on the App store. This helps people see what’s in your head (and on your screen.)
Make a PDF of your slide deck!
If you use Keynote or PowerPoint, or even SlideDown, convert your slides to PDFs. Include presenter notes in your export so that people will have more context as they’re reading along. If you don’t make use of presenter notes, you should start. They can help you when you present, but they can also help jog memories later when people look at your slides at work.
Protip: Presentation Remote for iPhone will let you see the presentation notes in your hand. You can control the slideshow with it as well.
Use Git and Github for your examples
Lately I’ve been using Git branches to stage my code examples. For my talk on HTML5 mobile apps, I started out with a new branch like this:
git init git checkout -b 01_simple_form
git add . git commit -m "Web form" git checkout -b 02_create_database
By the time I’m done, I have several branches in the repository that I can use to track the stages of my live demo. At the end, I merge my last branch into the Master branch.
git checkout master git merge 09_offline
Protip: If I realize that I made a mistake, I can check out the earlier branch, fix the code, commit the code, and merge that fixed branch forward into the branches that followed.
git stash # puts your in-progress work aside git checkout 01_simple_form # fix changes git commit -am "fixed the form" git checkout 02_create_database git merge 01_simple_form git checkout 03_add_note git merge 01_simple_form git stash apply # put your stuff back
Once I’m ready, I create the new Git repository and push my code. I have to push the master branch and the other branches too.
git remote add origin email@example.com:napcs/html5_offline_notes.git git push origin master git push origin 01_simple_form git push origin 02_create_database git push origin 03_add_note ..
So how does this help me during a talk? I can direct people to the Github page and they can use the Select branch section to see each branch. The Github web interface lets them follow along as I talk about the code. That’s what I did here.
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Be ready offline
As a last resort, take this git repository and your PDF presentation and make it available on a thumb drive, or fire up a local wifi hotspot and run a server. An iPad, iPhone, or iPod Touch with Air Sharing can help with this.
So, that’s how I’ve done preparation for my talks and managed to make it through a code-centric talk with just a whiteboard. Do you have any suggestions on what you would do?