Anyone who has looked at my photostream knows how much I like the Kaleidoscope block! I've made it in different sizes and in a number of different ways. This is my current favorite size and method. Starting at the upper left, I use a 4.5 inch strip of stacked fabric. In this case four stacks. One can use whatever ruler they have that gives a 45 degree angle. This size will give an unset kaleidoscope block of 7.75 inches. After I've cut the triangles, I sew them together four groups of two for each block. I press to one side. Then sew those units together. The two seams nest and if you put them under the presser foot and begin the seam, you can then hold the bottoms together and, since you're sewing on a bias edge, the two pieces will come together nicely. Then I press those to one side. Sewing the center seam is the same as the quarter seam, if you line up the beginning, then line up the center and hold it with your finger, the seams will come together because of the bias. Press that seam open. The corners are a three inch square cut on the diagonal. Sew them on, either to the floral or the solid side and press toward the corners. Love this block! So many ways to make it and so many different looks you can get by changing your fabric placement. If you want to see any of these pictures larger, just right click on the whole collage and then click on "Original."