Jeanin's post got me to thinking, since I was having some problems getting a 3.5 inch square on clue #2. I tried the following method and it worked for me, plus it goes much faster.
1. Cut the green strips 1.5 inches and the other two colors 2 inches using the entire width of the fabric.
2. Sew all three strips together. You should have approx. 40 inch strips.
3. Using the 45 degree mark on your ruler line up one set with the ruler tilted to the left and cut in two inch increments. Then do the same with the ruler tilted right. This will give you the right and left chevron.
4. Trim the two inch strips to 3.5 by 2 inch.
5. Sew the left and the right together. You should have a 3.5 X 3.5 block.
This really worked for me. Not only was it faster but the end result came out great. Thank you Jeanin for the suggestion.