I found that this assignment was pretty simple. I started out by using the polygonal lasso to create the "+" shape in the middle. While holding shift, I continued to create each square at the corners. I then used the inverse option so that I could work inside the "+". Continuing with the polygonal lasso I created the triangles. After that, I used the "M" keyboard shortcut to switch to the elliptical marquee tool and created the circle in the center. I again used the inverse option to switch my point of focus. While continuing to hold shift, I used the "K" keyboard shortcut to switch to the paint bucket and clicked inside one of the squares in the corner to fill in my color.
And there you have it.