I printed these letter formation sheets from Confessions of a Homeschooler. You need to scroll down the page to find the K4 curriculum and the A-Z Handwriting worksheets listed there. I laminated them to save on ink and paper by allowing them to be re-used. Faith is using them with a fine berol whiteboard pen that came in a pack of mixed colours from Amazon. I was amazed by her pen control as last time we did some letter formation in an activity book, her lines were shaky and she overshot the end of many of the lines. Just shows how children leap on suddenly even when you haven't been focusing on that particular aspect. There are some similar letter formation sheets on Sparklebox also, check out the resources here.