From a teacher's perspective our competition is tough. Passing out a handout of 30 problems that are all in a format of 534x25= is not as stimulating in the students' eyes as playing games such as Grand Theft Auto and Resident Evil.
They're also available for nearly all grade levels. There are printable middle school, high school, elementary school, and even pre-school worksheets.
It is a software program that provides step-by-step guidance throughout the process of planning and provides clear instructions and sound advice, along with resources for any additional help that may be required. It provides easily generated financials that are based on an underlying built-in financial model that is integrated with visual forecasting, and financial wizards to fill in the numbers in the pre-designed format of the business template.
However for the most part, when a worksheet is needed to help drill down a procedure, standard, or lesson, its effectiveness can and will vary.