Now that we are done drawing our main set of things to go into our aquarium, we will then work on our background.
The background for our fishtank could easily be done with a piece of light blue construction paper, but if we really want this to be a proper “mixed media” project then we will use some canvas boards.
We will use our canvas with acrylic paint and a wet-brush technique.
Step 1 - we cover the canvas with a light sheen of water. I use a big house painting brush to do this for the students.
Step 2 - we add the paint. I place a drop of red in one corner. A drop of yellow in the opposite corner and a nice healthy amount of blue right in the middle.
Step 3 - the students mix the colors, completely covering their canvas. I recommend not bringing the yellow over to the red paint thru the blue, otherwise it turns brownish… and no one wants a brown fish tank, yuck.
It’s cool to watch the drops of paint interact with the small amount of water and how it begins to spread out. I used very little paint on my own canvas, and I didn’t bother to mix it up too much which you will see in this picture here:

Step 4 – get the canvas away from the student when it looks done, and let it dry. Make sure their name and home room teacher name is on the reverse side.
Next post will be about wrapping the project up, and the few posts after that will deal with extra objects to add to the project, with downloadable instructions.
Tags: acrylic, mixed media, paint, primary colors, steps, wet canvas