My five children love to do mazes, dot-to-dots, and other workbook type activities. At anywhere from $4.00 to $9.00 per book, it was getting expensive trying to purchase workbooks that they would cruise through in two or three hours - or even less! I have tried erasing the lines, but this isn't much fun since you can still usually see them a little bit. I can't make copies of the pages because most of the books don't allow this under copyright laws. After much thought, today I went to the local office supply store and bought five transparency sheets for 65 cents each. Tonight my children are doing their mazes and dot-to-dots with transparencies laid on top of the pages. They are writing with dry erase markers and erasing each page (on the transparency) as they go. Now I'm happy that the children will be able to reuse their workbooks, they can take turns using different books, and this is going to save me some money! Yahoo!!
The best part is that this is a perfectly legitimate way to save some money. I truly oppose making copies of pages in books that specifically prohibit this because it infringes copyright laws. As an author, I really have to say that I try to be very particular about copyright laws. With the transparency idea, since you're not making a copy of anything in the book, you can still "reuse" the pages without breaking any copyright laws.
Sonya Haskins