I will admit that there is one type of worksheet that I used in the past and found relatively beneficial, although it had a different kind of flaw. For my Basic Math, Pre_Algebra, and Algebra classes, I had several books of "self_checking" worksheets. These worksheets had puns or puzzle questions at the top, and as the students worked the problems they were given some kind of code for choosing a letter to match that answer. If they worked the problems correctly, the letters eventually answered the pun or riddle. Students enjoyed these worksheets, but there are a couple problem areas even with these worksheets. Some students would get the answer to the riddle early and then work backward from letter to problem answer, so they weren't learning or practicing anything.
When I first had my son, I never knew what challenges awaited him in this big world. It started with having to overcome diabetes. This was a long and constant process. It took us about 3 years, but now we have it down to a science. He knows exactly what he needs to do and how to maintain his health. Once we got a system in place it was rather easy for him. Now he is in the third grade and we have hit the second biggest challenge / struggle of his life; math class. This is rather ironic because my husband and I both have Master's degree in engineering and mathematics. We have mastered very highly levels of math with relative ease. My son Cameron on the other hand, struggled to grasp the concept of multiplication. I had to help him find a way to tackle this. I thought to myself, what could I do? Then it hit me, we already developed a strategy that he has mastered to maintain his health. Why not help him develop a strategy to learn math concepts and skills? So I developed this 3 step method that changed everything.