There are also teachers who use these kinds of techniques to teach in a more animated manner. The idea is to keep children interested because without their attention, it is difficult to make them absorb what you are trying to teach.
Homeschool worksheets have pros and cons that depend on the type of material the worksheet deals with. One advantage is that worksheets are very handy if you want to give your child something to do. Some types of worksheets are very easy to grade and can be completed without much input from you. Worksheets can also give you a good idea of how much your child was able to understand of the subject matter.