It is important to learn letter first. The children must need to know how to write letters in printable form. After that, they can be taught how to write cursive. Writing cursives is not as easy as writing letters in printable form.
Remember that kids put more attention on animation. They are more interested on having fun so it is best for a teacher to teach them write letters in a fun way. Teachers may have noticed that when children are just being told on what to do, they may not do it right out of lack of interest. Remember that with the so many worksheets available, choose one that is best suited for a certain lesson. Plan ahead what type of worksheet to use for a given day, depending on what you plan to teach.