marching right along

Here's the last monday morning in March this year. And the first quarter is done, calender-wise.

So this is how we sew:
Step one: sew a yellow triangle on the corner.

Step one: sew another yellow triangle on the second corner.

Step one: Sew another yellow triangle on the third corner. (Are we there yet?)

Step one: Sew ANOTHER yellow triangle onto the fourth and final corner. Repeat for the next square. Repeat for the next square. Repeat, repeat, repeat . . . Only eleven more squares for step one.