I had a chance to observe this in a 1st grade class I taught for two days last week. One little boy's math work and writing were hardly legible. He worked as quickly as possible, writing over mistakes and paying little attention to spacing his letters and words. After finishing his work on my second afternoon with his class, he was working on a drawing with merry crismas written at the top. He asked me how to spell Christmas. I told him where he needed to add an h and a t. I watched him stick the letters in and pause to look at it. Then he carefully erased the word and rewrote it neatly. I smiled as I thought about the quality of his work on a project of his choosing versus one I had assigned. I grinned even more when he handed his finished product, a Christmas card, to me on his way out the door.