Video Episode 4: Improve Images with Alpha Selection

Images can be a great visual aid. But when you're using a black or gradient slide background and the image is surrounded by a white square it can look tacky. Here's how to use a tool in Keynote to selectively remove the background of an image to make it really fit the slide design.

This video is also available via a free subscription to the Brainslides Video Podcast in iTunes.

Video Episode 1: Get Better Quality Images From Google

Google Full Size Images No Blur.m4v Watch on Posterous

You've probably seen countless presentations with grainy, pixelated images. That's because the presenter uses an image with a low resolution – a common mistake when pulling images from Google. Here's how you ensure that the image you download is the highest quality possible for your presentation.

TED Talk: Julian Treasure shows 5 ways to present better

This recent TED Talk by Julian Treasure on 5 ways to listen better is a fabulous example of an effective presentation. Watch it, then let's talk about what you can do to improve your presentations.

5 ways to present better:

1. Keep it short

This talk is only 7 minutes long. As Julian explains, with our busy world, our attention spans are shrinking. We pay attention to fewer things for shorter periods of time. Keeping a presentation short helps ensure that the audience doesn't reach the point of being antsy and bored. But what if you're teaching an hour long class or have to give a presentation that is longer than 10 minutes? Break it down into smaller segments. As Dr. John Medina explains in Brain Rules, students tend to tune out at around the 10 minute mark, so structure your lesson to take advantage of that. Divide the lesson or presentation into 10 minute chunks, create your slides around those segments, and build in a break or related activity in between each of them. This helps regain the attention of the students. Even a simple joke can work – as long as it is directly related to the topic. Breaking down the lesson into smaller chunks also makes it easier to prepare.

2. Jump right in

When you watch the video, notice how there is no self-introduction, incidental anecdote about his plane ride, an lengthy list of thank you's, or a string of "umms" and throat clearing noises. He simply starts by stating the thesis of his talk, "We are losing our listening," which he promptly backs up with a clear set of data. This is the art of the cold start, which I have mentioned before. All of that warming up tends to bore the audience to sleep, while a brisk opening wakes them up and let's them know you mean business.

3. Keep slides simple

It's a theme that I repeat over and over again. Your slides are too complex. Everyone tries to cram too much information on a screen which is not meant for detail. Slides accompany your talk, they do not deliver it. Julian's slides are dead simple. No bullet points, no title and body text. Just simple phrases in large text on a decent colored background. They accompany his talk and reinforce the message he is trying to share.

4. Use media seamlessly

This talk was about sound: How we listen and why we should pay more attention to it. Julian played sounds in the background while he presented – cocktail party chatter, pink noise, crowds, birds in a forest, etc. – to give the audience a feel for what he was describing. The reason this was effective, though, was not simply because he used audio, but because he used it almost imperceptibly. I see lots of people use media in their presentations – like music or YouTube videos – but the process isn't always as seamless. Instead, the presenter exits out of the presentation revealing a mess of files on the desktop, navigates to a YouTube video, plays it in the window rather than fullscreen, fiddles with the mouse or volume while it is playing, and then returns to the presentation. This process is full of distractions and empty seconds in which the audience can drift off. If you want the media to make an impact, insert it into your presentation and set the appropriate timing so that it plays when you want it to. It can sometimes be difficult to find the right media format to use with Microsoft PowerPoint, but experiment a bit and check Microsoft's Support site for help. (If you're using Apple's Keynote, you will rarely run into playback issues with media.)

5. Stand comfortably

We've all seen it: the presenter pacing awkwardly around the stage, more often than not in a little jazz square near the lectern, pausing periodically with one leg crossed in front of the other. I like to call it the "presenter potty pace," and it happens when we are unsure of how to stand and what to do with our arms. Standing comfortably takes practice and awareness. Julian demonstrates it perfectly at 6 minutes 40 seconds into the video when he suggests that we be "connected in space and in time to the physical world around us, connected in understanding to each other." This also explains why nervous presenters look uncomfortable in their own skin – they lose connection with the present moment. Their minds are racing thinking about themselves and what they're supposed to say, and whether the presenter remote is working. If they just calm their minds, acknowledge where they are, and focus on their audience, they can relax into their stance and present comfortably and naturally. Julian is so adept at this, that, for a moment, he even had the confidence to dance a waltz on stage!

Learn to stand comfortably while on stage.

The TED stage has a large circle of red carpet which, I assume, is meant as a boundary for the presenter. There are likely many reasons for this, such as making it easier for stage lighting and the camera crew, but it also benefits the presenter. If they are conscious of the boundary, they will not wander frantically around the stage. Having a soft limit gives you a safe area to move around in. Just like Julian does, it is ok to shift your weight, take a step or two, and move your arms deliberately. Oftentimes, I will script a stage move at a specific point in my presentation, i.e. walk across the stage while introducing the second topic, stay there, then walk back while introducing the third topic. In general, though, stand with your feet about shoulder width apart and your hands relaxed at your side or in front of you if you tend to gesture a lot.

Of course, for teachers, it may be a little different. It is important to move around the classroom and maintain a close connection with the students, especially in K-12 (although, if you're using PowerPoint in grade school, we need to have another discussion). But when you are moving among the audience, it is even more important to maintain that relaxed confidence and presence of mind.

What other presentation tips can you learn from this wonderful TED Talk?

The Good and Bad of the Prezi Contest Winner

Today, Prezi announced the winner of its iPad Contest. I am excited by the results, but also slightly concerned. The contest asked participants to create a Prezi presentation that would answer the question "iPad + Prezi = ?" in an effort to explore the possibilities of using the new Prezi for iPad app. New technology is always exciting and – like many teachers and students – my first thoughts go towards how it can be used in the classroom. I viewed all 7 finalists for the competition and nearly all of them mentioned using Prezi + iPad in some educational setting.

I especially liked Derek Jones' presentation which explored using Prezi for iPad in various combinations, such as using one iPad to browse various presentations, or using multiple iPads to interact with the teacher's presentation. Check out this concept from his presentation: While a teacher is lecturing, a question can be shown on the projector screen while the possible answers are shown on the students' iPad screens. Each student can then respond on their iPad. How awesome is that?!

Prezi can be used to show quiz questions while students see the responses on their iPads

Concept: Use Prezi + iPad as a quiz & feedback tool in the classroom

While this functionality is not yet possible with Prezi, it is this conceptual thinking that drives technology forward and makes it worthwhile to explore it's use in the classroom.

The winner, by popular vote, of the Prezi + iPad contest was Will Gibbs, a History teacher in Philadelphia. Will's presentation also encourages the exploration of using new technologies in the classroom and emphasizes the importance of teachers and private companies in moving forward and revolutionizing the tools available for education. In particular, he mentions the use of tests that haven't changed in 30 years! While I agree with Will that "there is far too much stagnancy in our educational institutions right now," his presentation also suggests a viewpoint that I have heard more and more from teachers, that greatly concerns me. Evidently, some people think that using old technology is ridiculous.

Will Gibbs asks which 30 year old classroom tools are used today.Will Gibbs suggests it is ridiculous that old classroom tools are still in use

I completely disagree that all old technology must die!

There seems to be a fear from some teachers that if they are not using the most current and up to date tools in their classroom that they themselves may become defunct, lose touch with their students, and fail as a teacher. This is not true!

Yes, teachers need to be flexible and willing to try new things as they are available to them, and new technology is one of the greatest ways to get student attention and encourage students to actively participate. But this doesn't mean that it is ridiculous to use tools such as overheads, chalkboards, and dioramas in the classroom today. Sure, updated versions such as document cameras and whiteboards might be better, and allowing students to create stop-motion film or podcasts are a great alternative. But sometimes paper and pencil are just more effective than handing out 20 iPads for the students to sketch on.

We need to use technology that is proven to be effective, not just technology that is new!

WHAT DO YOU THINK?

Prezi in Education

New technologies are always developing that can be useful in the classroom. Over the past couple of years, Prezi started as a small start-up with a unique idea and has developed into a very usable alternative to PowerPoint and Keynote for creating presentations.

Prezi is very different in that, rather than a collection of slides presented in linear fashion, the presenter prepares a canvas that contains all of the material – text, images, even online content – that can be browsed, zoomed, spun, and more. You may be familiar with the idea of mindmapping – starting with a core concept and connecting related ideas in a web-like diagram. Prezi builds on this idea and adds an interactive level.

300px-Guru_Mindmap.jpg

Where Prezi really shines in the classroom is the ability to show the big picture as well as the finer details.

Recently, the team at Prezi launched a resource called Prezi Explore, a collection of presentations licensed for reuse and adaptation. This is an excellent resource for teachers who can grab a prebuilt presentation on a difficult concept and use it to give a new perspective to their students.

One of the Prezi presentations included in this section explains how Prezi can be used as a teaching tool. Browse through it and see some really great examples of how the tool can be used in the classroom to help students have a better understanding of the topic.

If you like what you see, go ahead and sign up for Prezi – it's free for the public, plus they offer free upgraded accounts to individuals with a .edu e-mail address.