Writing the alphabet is an assessment tool I use with my class to see letter writing. My colleague Genie had this sheet from her old school, and I just love it. This year, we did this assessment in the winter and spring.
Students write all of the upper and lowercase letters that they know.
Next year, I plan to have my students do this each month. The booklet below has the sheets labeled for each month. This summer I hope to make a checklist that would record what letters the students know how to write and letters they need to learn.