A few things worth knowing before you print a stack of them.
Teach letters in formation groups, not alphabetically
Letters that share a movement should be taught together: c, a, d, g, q all begin with the same anticlockwise curve. Teaching A, B, C in order pairs three completely unrelated movements. Use the “Start from position” setting to work through your own grouping.
The font matters more than you would expect
The School Print face uses a single-storey a and g, matching how children are taught to write by hand. Most standard fonts use a two-storey a, which does not, and children then copy a shape they will never be asked to produce.
Fewer traces, more blank rows
Tracing eight copies of a letter becomes mechanical after the third. Two or three traces followed by a blank ruled row demands recall, which is where the learning actually happens.
Colour the lines to match their exercise book
Four-line handwriting books colour the outer pair red and the inner pair blue, and children are taught to keep the body of each letter inside the blue band. A worksheet ruled in plain grey throws that cue away. Set the guide line colour to Notebook and the sheet matches the book they write in every day, so the instruction “stay between the blue lines” still means something.
Letters are taught in movement families, not alphabetically
Starting at A and working to Z groups letters that have nothing in common. Handwriting schemes group by the movement instead: the long-ladder letters l, i, t, u, j, y; the curly-caterpillar letters c, a, d, g, o, s; the one-armed-robot letters r, n, m, h, b, p. A child who has learned the anticlockwise curve of c has most of a, d, g and o already, which is invisible if the letters arrive in alphabetical order.
Lowercase first, and by some margin
Capitals are simpler to form — mostly straight lines — which is why they are often taught first, and it causes trouble. Around 95% of the letters in ordinary text are lowercase, so a child fluent only in capitals cannot read or write normally and has to be retrained out of the habit later. Teach lowercase first and bring capitals in for names and sentence starts.
Watch the starting point, not the finished letter
A child can produce a perfectly acceptable letter with entirely wrong movement, and the tracing sheet will not show it. An o drawn clockwise looks identical to one drawn anticlockwise on the page, but the clockwise habit will block joined writing later. This is the argument for watching children write rather than only marking the result — by the time the problem is visible in the output it is well established.
The four lines mean something specific
The baseline carries the letter, the midline caps the x-height body, the top line is where ascenders reach and the descender line is where g, j, p, q and y drop to. Children who understand this write letters of consistent relative size, which is most of what makes handwriting look neat. Pointing at the lines and naming them takes a minute and is more useful than repeated tracing.
Short and frequent, with a properly sharp pencil
Handwriting is motor learning, so five minutes daily builds it and thirty minutes weekly does not. Practical details matter more than they should: a blunt pencil makes accurate formation impossible, and a child gripping too hard tires within a few letters. If the last row of every sheet is noticeably worse than the first, the sheet is too long.