Reveals: Erase and reveal

If you use ink to cover over an object, typed text, or locked-ink object, you can then erase that ink to reveal the object or text hidden below. Let me share with you the following example. Grabbing the eraser, I'm just erasing. And voila, you see that the method that I'm going to share with you today is erase and reveal. On the next page, you see that I got a question. What is the name of this invention and the erase, the answer already present.

For my students, I want to go ahead and set this up so that they will be able to erase and reveal that answer after they have explored or discussed that answer themselves. So, you'll notice that the background is yellow so when I put ink over this writing, over this answer, I'm going to want to use yellow ink. First step, let's go ahead and select the pen. Now it doesn't actually matter which pen I choose, but to save time I'm going to go ahead and select the thick pen, the big black thick pen, but of course, I'm not going to use black ink.

Going over to my properties tab, I could switch to the yellow of the background. But because maybe let's say for example, I'm not sure if that is the right tone of yellow. I'm going to use the ink dropper, so I'm selecting the ink dropper. And what the ink dropper does is where ever you touch on the background it takes a sampling of that color and will match that color for us. So now, our pen color is matched to the background color, and we can go ahead and draw the ink over our answer and we are ready to go.

And so students can then pick up an eraser when they're ready and erase to reveal the answer. You might want to remind yourself that there's hidden information behind ink by writing something on the screen, such as erase here for the answer. If you want to use erase and reveal over ink itself, so that's ink over ink, you just need to lock the inked object in place so they won't be erased with the cover layer of ink. This reveal takes a little more time and preparation, but it is very appealing for the students.

It's an especially good technique when the eraser can be in the hands of students that only erase after they've given it a try of their, on their own to identify the hidden object.