There are many free worksheets available, especially online, but still the best worksheet is one that you personally draft. This way, you are able to match the level of difficulty of the activity in accordance to the performance level of your own students. It is not bad to reuse worksheets for another batch of students, but once in a while it is also better to vary the activities you give to kids. Worksheets can be made for fun if it is attuned to the current interests of kids. The kids will respond better to activities close to their own interests.
Worksheets are now being used in our day to day lives. A large proportion of people use worksheets to teach or impart certain lessons to their children. There are various kinds of worksheets for kids, which are nowadays used in schools for easy learning. Worksheets for kids which are particularly used in schools are basically to write letters, joining dots, numerical and so on.