Here are a few examples of what I did in the class. We went over a lot more of course - this is just to give you an idea of what was covered. All the images here were given to us in class. They were printed on high quality card stock. The brush end was used for all the coloring in these examples.
The circles on the left were colored with two or three colors each (sorry I can't remember!) and blended smoothly to create shading. (There were actually three circles on the card stock sheet she gave us but I didn't color the other one so I cropped it off.)
We also did some feather blending. This was tricky. I think I'll have to practice more to get a smoother transition. I used darker colors for a challenge - it is easier to work with the lighter colors.
We used the feather blending technique to color this pretty set of flowers too. (I just noticed that I didn't color the centers, doh!)
Here is an example of blending from a palette. The palette used here was simply a piece of acetate. A craft sheet would work too but the advantage of the acetate is that it could be put over the top of white card stock so you may see the colors better (as well as where they are on the sheet - some colors are too light to see on the acetate if it isn't over a light surface). The darker color was applied to the acetate and the lighter marker was used to pick up some of the color. This gives a sort of watercolor effect as it is painted on. Don't worry about the darker color staying on the tip of the lighter marker; if there is still some on it when you are done, just color on a scrap sheet until it is gone (it comes off pretty easily).
I used the darker green to shade areas on the pineapple.
Another technique is called tip-to-tip blending. Just use the lighter color marker to pick up the darker color directly from the marker (or possibly from some slop around the cap) then color from dark to light. In the image on the left, I picked up the darker green (G28) with the lighter green marker (YG01), started on the bottom left then colored to the right. Note: marker may be easily cleaned off non-porous surfaces with alcohol - this includes the marker body and cap, as well as acetate and craft sheets.
Below are some examples of how to add texture with the colorless blender. The pocket images below were colored using one blue marker (B95). On the top, I squirted some colorless blender on a paper towel and pressed it briefly onto the image. I used the colorless blender marker on the bottom left image to make some shapes. (I used the chisel tip to do the lines and dashes.) For the image on the bottom right, I just went over the image with the colorless blender marker (brush tip) until I was satisfied with the look (kind of an acid-wash).