Blackboard2: How to use pre-recorded demos: Convex Combination of Vectors

Loading a fresh demonstration just take one click. Follow the link below and you'll have access to the entire demonstration for you to re-use; alter or save privately in your own Dropbox to re-use later.

…::: Open Demo :::…

The next section explains how to step through the slide.

This is where you carefully present your content to your audience. Blackboard2 is gives you the full control of what you present; when you present it.

You can show your entire slide as you planed; or you can skip over some parts because of the time pressure without annoying flipping through pages as in the traditional power point presentation.

You can add elements on the fly during the presentation; you can move elements around and much more… Please note this page, we only cover the absolute basics:

1. How to start the presentation by hiding the content from your audience; and
2. How to show the elements of your presentation one-by-one.

If you'd like to learn more, please have a look at our Getting Started course.

At the start of your presentation, you have a black page. To achieve this, you hide the content preloaded in the previous step by pressing V key (capitalised 'v', i.e., shift+v).

Once you hit V key, your page looks completely empty! Don't panic the content is still there. It is exactly at the same places where it was before pressing V. It is simply rendered invisible.

Now you can show (AKA play to you audience) each element of you slide as you see fit. In order to do so, you move the mouse pointer over the element you wish to play and hit Z key (capitalised 'z', i.e., shift+z).

How do you know where the element you which to open if everything is invisible?

Easy! Pressing and keeping pressed z key (lowercase 'z'), shows every element in very faint colour. We call it hinting. Keeping z pressed hints to you where the elements are in such a way that your audience can barely notice that.

You'll also quickly learn that an individual element is hinted every time the mouse pointer moves over it. The difference from above is that when you move the pointer over an element only that element is hinted; the z key on the other hand hints every element.

You can do absolutely anything with the content on your slide. In particular, you can

1. move elements around;
2. scale elements up or down;
3. add new formulae and images;
4. edit existing formulae and images;
5. save the content of original and/or updated slide to your own Dropbox and re-use it later.

You can learn how to do all this and much more by vising our Getting Started course.