Here is how I made one of the boxes for the Kaleidoscope quilt. This is one of the simpler ones. Some of them have three pieces per large triangle. I'll show the parts to that one later.
You start with two strips each of light, medium and dark fabrics, 1 1/2 and 2 3/4 wide. The hard part is to find the right shades in fabrics that read as solids unless you have a huge stash. I find that many batiks work really well.
These are the larger trapezoids.
And the small triangles.
Laid out on the ironing board. I have to follow the pattern in the book for this. Some of you might be clever enough to do it on your own.
Here the triangles and trapezoids are sewn together. The book recommends not trimming off the ears. They help with placing the pieces together. They also press all the seams open.
Here the halves are pinned together. I'm quite happy with the shades on this one. Since my fabric for this one has lots of colors, I'll be making more colorful boxes, unlike the dragon one in which I used black and white for the boxes. The next time I go to a fabric store I'll bring the piece of selvage that has the dots of color used in the fabric and try to match some of those.